The Nile in 1904

by Sir William Willcocks

Appendix I.

Table XXVI.—Table of mean monthly Discharges at Khartoum, Assuân and Cairo, for the maximum, minimum and mean years.

Month	1877-78 Minimum Year			1878-79 Maximum Year			Mean of 20 Years
	Blue Nile at Khar- toum.	Assuân.	Cairo.	Blue Nile at Khar- toum.	Assuân.	Cairo.	Blue Nile at Khar- toum.	Assuân.	Cairo.
June	1000	800	600	1000	500	250	1000	750	500
July	2800	2400	1100	3500	2000	900	2800	2200	1100
August	5300	5600	3900	8200	7900	5200	7000	7900	5300
September	4700	5900	4400	12500	12100	8600	8500	9200	7200
October	2500	4000	3900	8000	9300	10300	4500	6000	6900
November	..	2400	2550	..	4700	6500	..	3300	3700
December	..	1500	1600	..	3200	3600	..	2200	2300
January	..	1200	1300	..	2400	2600	..	1600	1600
February	..	800	800	..	2100	2100	..	1200	1200
March	..	600	550	..	1900	1900	..	850	800
April	..	500	400	..	1600	1600	..	700	620
May	..	400	300	..	1500	1500	..	600	520
Mean	..	2175	1783	..	4100	3754	..	3041	2645

Note.—The very high discharges at Assuân and Cairo in April and May 1879; the minimum discharge of that year was about 1500 cubic metres per second. There has never been any discharge like that since.

---

Appendix J.
DISCHARGE TABLES OF THE DIFFERENT GAUGES OF THE NILE AND ITS TRIBUTAIRIES.

Table XXVII.—Discharges table of the Victoria Nile at the Ripon Falls.

Gauge.	Discharge m³ per second.	Remarks.
0·0	380	This discharge table is the mean of two alternative tables; one assuming that the width of thesill of the Ripon Falls was 127 metres as stated by Sir William Garstin, the other assuming that only half this width was theworking sill, the rest being more or less shallow water. The constant has been taken as ·57. Sir William Garstin makes thewidth of the sill 70 + 40 + 13 = 127 metres, while Chavanne gives it as 82 + 14 + 55 + 22 = 173metres. The wider the sill, the quicker is the rise of discharge from the measureddischarge at the gauge of ·51.
·1	410
·2	450
·3	480
·4	520
·5	550
·6	580
·7	620
·8	660
·9	700
1·0	740
·1	780
·2	820
·3	860
·4	900
·5	950
·6	990
·7	1040
·8	1090
·9	1140
2·0	1190

Table XXVIII.—Discharge table of the Albert Nile at Wadelaï.

Gauge.	Discharge cubic metres per second.	Gauge.	Discharge cubic metres per second.	Gauge.	Discharge cubic metres per second.
0·0	520	1·0	780	2·0	1090
·1	544	·1	810	·1	1104
·2	568	·2	840	·2	1118
·3	592	·3	870	·3	1132
·4	616	·4	900	·4	1146
·5	640	·5	930	·5	1160
·6	668	·6	962	..	..
·7	696	·7	994	..	..
·8	724	·8	1026	..	..
·9	752	·9	1058	..	..

Table XXIX.—Discharge Table of the Albert Nile at the Gondokoro gauge.

Gauge.	Discharge cubic metres per second.	Remarks.
0·0	550	There is a scour of a metre and upwards at this gauge site during a high flood. The pit isapparently filled with sand during a low flood.
·2	600
·4	660
·6	740
·8	820
1·0	900
·2	1060
·4	1220
·6	1380
·8	1540
2·0	1700
·2	1900
·4	2100
·6	2300
·8	2500
3·0	2700

Table XXX.—Discharge table of the Albert Nile at the Mongalla gauge, 32 kilometres north of Gondokoro.

Gauge.	Discharge cubic metres per second.	Gauge.	Discharge cubic metres per second.	Remarks.
0·0	500	2·0	1100	This is a better site than Gondokoro.
·2	540	·2	1300
·4	580	·4	1500
·6	620	·6	1700
·8	660	·8	1900
1·0	700	3·0	2100
·2	780	·2	2300
·4	860	·4	2500
·6	940	·6	2700
·8	1020	..	..

Table XXXI.—Discharge table of the Sobat river at Dulaib Hilla.

Gauge.	Discharge in m³ per second.
0·0	30
·2	58
·4	86
·6	112
·8	142
1·0	170
·2	218
·4	266
·6	314
·8	362
2·0	410
·2	500
·4	590
·6	680
·8	790
3·0	860
·2	950
·4	1040
·6	1130
·8	1220
4·0	1310

This gauge is in backwater when the north
end of the Sudd region is flooded.

Table XXXII.—Discharge Table of the White Nile at Tewfikieh downstream of Sobat junction referred to Tewfikia Gauge.

Gauge.	Discharge in m³ per second.
-1·0	150
0·0	330
·2	376
·4	422
·6	468
·8	514
1·0	560
·2	616
·4	672
·6	728
·8	784
2·0	840
·2	906
·4	972
·6	1038
·8	1104
3·0	1170
·2	1270
·4	1370
·6	1470
·8	1570
4·0	1670
·2	1770
·4	1870
·6	1970
·8	2070
5·0	2170

Table XXXIII.—Discharge Table of the White Nile at Duem in Winter and Summer when the Blue Nile is low.

Gauge.	Discharge in m³ per second.	Remarks.
0·0	330	This gauge is in backwater when the Blue Nile is high.
·1	354
·2	370
·3	402
·4	426
·5	450
·6	480
·7	515
·8	555
·9	600
1·0	650

This table is only very approximative.

Table XXXIV.—Discharge table of the Blue Nile at Wad Medani.

Gauge.	Discharge in m³ per second
	River rising.	River Falling and Stationary.
0·0	50	50
·2	80	64
·4	110	78
·6	140	92
·8	170	106
1·0	200	120
·2	240	146
·4	280	172
·6	320	198
·8	360	224
2·0	400	250
·2	450	284
·4	500	318
·6	550	352
·8	600	380
3·0	650	420
·2	720	406
·4	790	512
·6	860	558
·8	930	604
4·0	1000	650
·2	1100	720
·4	1200	790
·6	1300	860
·8	1400	930
5·0	1500	1000
·2	1630	1100
·4	1760	1200
·6	1890	1300
·8	2020	1400
6·0	2150	1500
·2	2320	1620
·4	2490	1740
·6	2600	1800
·8	2830	1980
7·0	3000	2100
·2	3200	2340
·4	3400	2580
·6	3600	2820
·8	3800	3060
8·0	4000	3300
·2	4300	3540
·4	4600	3780
·6	4900	4020
·8	5200	4200
9·0	5500	4500
·2	5900	4840
·4	6300	5180
·6	6700	5520
·8	7100	5860
10·0	7500	6200
·2	8000	6580
·4	8500	6960
·6	9000	7340
·8	9500	7720
11·0	10000	8100
·2	10600	8540
·4	11200	8980
·6	11800	9420
·8	12400	9800
12·0	13000	10300

(1) These discharges include the Rahad river. They represent the discharges below the Rahad river junction referred to the Wad Medani gauge.

(2) During a high flood the river scours, and it silts during a low flood; consequently for exact discharges below 5 metres, the section of the river should be taken annually in December.

Table XXXV.—Discharge Table of the Blue Nile at the Khartoum Gauge.

Gauge.	River rising	River falling and Stationary
	Discharge in m³ per second.	Discharge in m³ per second.
- ·2	100	100
+0·0	175	120
·2	260	145
·4	360	170
·6	470	195
·8	580	220
1·0	700	250
·2	860	340
·4	1020	430
·6	1180	520
·8	1340	610
2·0	1500	700
·2	1720	880
·4	1940	1060
·6	2160	1240
·8	2380	1420
3·0	2600	1600
·2	2980	1840
·4	3360	2080
·6	3740	2320
·8	4120	2560
4·0	4500	2800
·2	4980	3180
·4	5460	3560
·6	5940	3940
·8	6420	4320
5·0	6900	4700
·2	7560	5220
·4	8220	5740
·6	8880	6260
·8	9540	6780
6·0	10200	7300
·2	11000	7940
·4	11800	8580
·6	12600	9220
·8	13400	9860
7·0	14200	10500
·2	...	11140
·4	...	11780
·6	...	12420

This gauge is in backwater when the White Nile is discharging more than the Blue Nile.

Table XXXVI.—Discharge Table of the Atbara river referred to the Khasm el Girba Gauge.

Gauge.	Discharge.
0·0	0·0
·2	20
·4	40
·6	60
·8	80
1·0	100
·2	150
·4	200
·6	250
·8	300
2·0	350
·2	444
·4	538
·6	632
·8	726
3·0	820
·2	1012
·4	1204
·6	1396
·8	1588
4·0	1780
·2	2078
·4	2376
·6	2674
·8	2972
5·0	3270
·2	3596
·4	3922
·6	4248
·8	4574
6·0	4900

Table XXXVII.—Discharge table for the Assuân, Assiut and Cairo Gauges.

The gauges are in metres and are referred to mean low-water level as zero.

The zero is:
	at Assuân	R. L.	85·00
	at Assiut	„	45·55
	at Cairo	„	12·25

N.B.—At Assiut R. L. 45·55, according to the reservoir levels, is R. L. 45·05 according to the 4th Circle levels.

(The discharges are in cubic metres per second.)

This discharge table may be used approximately for any gauge on the Nile north of Assuân with its zero at mean low-water level; adding ·5 to the gauge in Kena Province, and deducting ·5 from the gauge in Minieh and Beni-Suef.

If the river is rising, take the discharge corresponding to the higher gauge; if falling or stationary to the lower one.

Gauge.	Discharge.
-1·0	360
- ·8	406
- ·6	452
- ·4	498
- ·2	544
0·0	590
·2	668
·4	746
·6	824
·8	902
1·0	980
·2	1086
·4	1192
·6	1298
·8	1404
2·0	1510
·2	1652
·4	1794
·6	1936
·8	2078
3·0	2220
·2	2408
·4	2596
·6	2784
·8	2972
4·0	3160
·2	3404
·4	3648
·6	3892
·8	4136
5·0	4380
·2	4674
·4	4968
·6	5262
·8	5556
6·0	5850
·2	6150
·4	6450
·6	6800
·8	7200
7·0	7600
·2	8000
·4	8400
·6	8800
·8	9300
8·0	9800
·2	10300
·4	10900
·6	11500
·8	12100
9·0	12800
·2	13600

Table XXXVIII.

Discharge Table of the Wady Halfa Gauge, for use at Assuân when the Assuân Dam is being regulated on, and consequently the Assuân Gauge no longer represents the normal discharge of the Nile. At this stage of the river it may be assumed that the water travels normally between Wady Halfa and Assuân in 3 or 4 days.

Gauge.	Discharge cubic metres per second.
0·8	370
1·0	440
·2	516
·4	592
·6	688
·8	804
2·0	920
·2	1048
·4	1176
·6	1314
·8	1462
3·0	1610
·2	1800
·4	1990
·6	2180
·8	2370
4·0	2560
·2	2802
·4	3044
·6	3286
·8	3528
5·0	3770

Table XXXIX.—Discharge of the Rosetta Branch of the Nile referred to the Delta Barrage north of Cairo.

1890
Gauge.	Discharge m³ per second.
0·00	0
·25	50
·50	100
·75	150
1·00	200
·25	287
·50	375
·75	463
2·00	550
·25	700
·50	850
·75	1000
3·00	1150
·25	1312
·50	1475
·75	1638
4·00	1800
·25	1975
·50	2150
·75	2325
5·00	2500
·25	2700
·50	2900
·75	3100
6·00	3300
·25	3525
·50	3750
·75	3975
7·00	4200
·25	4450
·50	4700
·75	4950
8·00	5200
·25	5475
·50	5750
·75	6025
9·00	6300

Zero of the gauge R. L. 10·00 metres above mean sea.

Table XL.—Discharge of the Damietta Branch of the Nile referred to the Delta Barrage north of Cairo.

1890
Gauge.	Discharge m³ per second.
0·00	0
·25	20
·50	40
·75	60
1·00	80
·25	110
·50	140
·75	170
2·00	200
·25	262
·50	325
·75	388
3·00	450
·25	537
·50	625
·75	712
4·00	800
·25	925
·50	1050
·75	1175
5·00	1300
·25	1450
·50	1600
·75	1750
6·00	1900
·25	2075
·50	2250
·75	2425
7·00	2600
·25	2800
·50	3000
·75	3200
8·00	3400
·25	3625
·50	3850
·75	4075
9·00	4300

Note.—Zero of the gauge R. L. 10·00 metres above mean sea.

---

Appendix K.
TABLES GIVING DETAILED INFORMATION ABOUT THE NILE BETWEEN ASSUÂN AND CAIRO.

Table XLI.—Date of Heights of Minimum gauges in summer and Maximum gauges in flood at Assuan.

Year.	Minimum summer		Maximum flood
	Date.	Gauge.	Date.	Gauge.
1873	5 June	-0·37	1 September	7·66
1874	30 May	-0·64	6 September	8·97
1875	23 May	-0·17	11 September	8·36
1876	15 June	+0·13	7 September	8·68
1877	27 May	+0·10	20 August	6·40
1878	23 June	-0·71	1 October	9·15
1879	23 May	+1·88	13 September	8·59
1880	9 June	+0·82	4 September	7·82
1881	14 May	+0·00	4 September	8·14
1882	23 June	-0·55	28 August	8·00
1883	22 June	+0·04	17 September	8·18
1884	27 May	+0·37	1 September	7·73
1885	21 June	-0·44	28 August	8·05
1886	3 June	-0·06	22 September	8·04
1887	8 May	-0·03	1 September	8·81
1888	8 June	-0·08	24 August	7·08
1889	24 June	-0·60	2 September	8·36
1890	8 June	-0·60	2 September	8·72
1891	19 May	-0·21	27 September	7·84
1892	18 June	-0·64	20 September	8·88
1893	18 June	+0·35	14 September	7·75
1894	16 June	+0·06	18 September	8·61
1895	23 June	+0·78	10 September	8·68
1896	13 June	+0·49	3 September	8·63
1897	31 May	+0·62	1 September	7·80
1898	23 June	-0·25	29 August	8·63
1899	1 June	+0·15	4 September	6·67
1900	15 May	-0·93	19 August	7·91
1901	10 May	-0·46	6 September	7·82
1902	12 May	-0·48	17 September	6·72
1903	16 April	-0·68	27 August	7·93
1904	5 June	-0·20	13 August	6·97

Zero is R. L. 85·00 metres or mean low water level.

Table XLII.—Table giving areas of cross sections of the Nile, from Assuân to Cairo.

Locality.	Length in kilo- metres.	MEAN AREA IN SQUARE METRES
		Below zero.	Below 6 metres.	Below 7 metres.	Below 8 metres.	Below 8.5 metres.	Below 9 metres.
Assuân to Ramâdi	81	1024	4930	5808	6754	7337	7993
Ramâdi to Esna	76	674	4554	5461	6398	6966	7695
Esna to Kena	115	852	4476	5336	6221	6726	7363
Kena to Sohâg	158	973	4718	5600	6535	7121	7873
Sohâg to Assiout	98	1037	5220	6305	7705	8683	9749
Assiout to Minia	138	899	5149	6205	7783	8845	9937
Minia to Beni-Suêf	117	915	5035	6007	7315	8196	9140
Beni-Suêf to Koshesha	34	665	5040	6080	7532	8379	9247
Koshesha to Cairo	81	1031	5364	6388	7813	8648	9495
Cairo to the Barrage	24	1402	5414	6628	8346	9258	10184
Assuân to Assiout	528	920	4760	5680	6690	7310	8080
Assiout to Koshesha	289	870	5080	6100	7550	8510	9520
Koshesha to Cairo	81	1030	5360	6380	7810	8640	9490
Assuân to Cairo	898	910	4930	5890	7080	7830	8690

Table XLIII.—Table of the cubic contents of the trough of the Nile from Assuân to Cairo in millions of cubic metres.

Locality.	Length in kilo- metres.	CONTENTS IN MILLIONS OF CUBIC METRES						CONTENTS IN MILLIONS OF CUBIC METRES
		Below zero.	From zero to 6.0	From 6.0 to 7.0	7.0 to 8.0	8.0 to 8.5	8.5 to 9.0	Below zero.	Below 6.0	Below 7.0	Below 8.0	Below 8.5	Below 9.0
Assuân to Ramadi	81	83	316	711	77	47	53	83	399	470	547	594	647
Ramadi to Esna	76	51	295	69	71	43	56	51	346	415	486	529	585
Esna to Kena	115	98	417	99	102	58	73	98	514	614	715	773	847
Kena to Sohag	128	154	592	139	148	83	119	154	745	885	1032	1125	1244
Sohag to Assiout	98	102	410	106	137	96	104	102	512	618	755	851	955
Assiout to Minieh	138	124	586	146	218	147	151	124	710	856	1074	1220	1371
Minieh to Beni Suêf	117	107	482	114	153	103	110	107	589	703	856	859	1069
Beni Suêf to Kushesha	34	23	149	35	49	29	29	23	171	207	256	285	314
Kushesha to Cairo	81	84	351	83	115	68	69	84	434	517	633	700	769
Cairo to the Barrage	28	34	96	29	41	22	22	34	130	159	200	222	244
Assuân to Assiout	528	487	2030	484	534	327	405	487	2517	3001	3535	3862	4267
Assiout to Kushesha	289	254	1217	295	420	278	291	254	1471	1766	2186	2464	2755
Kushesha to Cairo	81	84	351	83	115	68	69	84	435	518	633	701	770
Assuân to Cairo	898	825	3598	862	1069	673	765	825	4423	5285	6354	7027	7792

Table XLIV.—Widths of water surface from Assuân to Cairo.

From.	To.	Mean width of water surface
		0	6·0	7·0	8·0	8·5	9·0
Assuân	Ramadi	400	840	880	1030	1270	1400
Ramadi	Esna	340	850	890	1030	1260	1620
Esna	Kena	350	820	850	940	1120	1400
Kena	Sohag	380	870	890	1000	1300	1560
Sohag	Assiout	400	1000	1170	1720	2080	2170
Assiout	Minieh	390	970	1180	1890	2060	2080
Minieh	Beni Suêf	490	960	1300	1550	1800	1840
Beni Suêf	Kushesha	500	1000	1390	1690	1720	1730
Kushesha	Cairo	450	960	1100	1570	1700	1700
Cairo	Barrage	440	940	1460	1840	1860	1890
Assuân	Assiout	370	880	940	1140	1410	1630
Assiout	Kushesha	460	980	1290	1710	1860	1880
Kushesha	Cairo	450	960	1100	1570	1700	1700
Assuân	Cairo	430	940	1110	1470	1660	1740
Area of water surface in millions of square metres.
Assuân	Assiout	200	470	500	600	740	860
Assiout	Cairo	130	280	370	490	540	540
Assuân	Cairo	400	840	1000	1320	1490	1560

Table XLV.—Slope of water surface in the Nile. Assuân to Cairo.

From.	To.	Distance in kilo- metres down the centre line of the flood.	Distance in kilo- metres down the summer channel.	Slope in flood.	Slope in summer.
Assuân	Silsila	70	72	1⁄11500	1⁄12600
Silsila	Kasr-es-Saad	250	258	1⁄14800	1⁄14800
Kasr-es-Saad	Khazindaria	150	159	1⁄12300	1⁄13400
Khazindaria	Assiout	60	63	1⁄11800	1⁄14500
Assiout	Beni Mazâr	180	196	1⁄11000	1⁄11800
Beni Mazâr	Ashmant	90	94	1⁄11000	1⁄11400
Ashmant	Cairo	100	106	1⁄11600	1⁄12300
Cairo	Barrage	23	25	1⁄10800	1⁄20000
Assuân	Cairo	900	948	1⁄12200	1⁄13000

Table XLVI.—Mean low water level of the Nile—Assuân to Cairo.

Distance from Assuân along centre of flood.	Name of Locality.	R. L. According to reservoir levels.	R. L. According to inspectors of irrigation.	Distance from Assuân along summer Channel.
0	Assuân	85·0	85·0	0
70	Gebel Silsila	79·3	79·4	72
106	Edfu	76·7	77·0	..
157	Esna	73·1	72·6	..
194	Armant	70·1	69·6	..
213	Luxor	69·0	68·5	..
272	Kena	65·3	64·8	..
320	Kasr-es-Saad	61·7	61·2	330
328	Heu	61·2	60·7	..
333	Naga Hamadi	61·0	60·5	..
365	Abu Shusha	58·6	58·1	..
373	Balyana	58·3	57·8	..
390	Girga	56·9	56·5	..
429	Sohâg	53·8	53·2	..
470	Khazindaria	49·9	49·4	489
505	Aboutig Escape	47·7	47·1	..
530	Assiout[12]	45·55	45·05	552
598	Derut Escape	39·1	38·5	..
627	Roda	36·3	35·7	..
666	Minia	32·6	32·0	..
710	Beni Mazâr	28·9	..	748
..	Beni Suêf[13]	22·1	21·8	..
800	Ashmant	20·5	20·2	842
..	Kushesha Escape	18·9	18·6	..
..	El-Ayât	15·8	15·5	..
898	Cairo gauge	12·10	12·25	..
900	Cairo	12·00	12·1	948

[12] Downstream of the Assiout weir.

[13] The Beni Suêf gauge is unreliable in summer as it is on a branch of the river which is dammed by the villagers.

Table XLVII.—Discharge table of the Upper Egypt canals.

A low Nile flood is	6·4	metres		-	at Assuân.
A mean Nile flood is	7·5	„
A high Nile flood is	8·3	„

The discharges of the Upper Egypt canals corresponding to the Assuân gauges are approximately as follows: —

Assuân	6·0	1300
	·1	1370
	·2	1440
	·3	1510
	·4	1580	—Low Nile flood.
	·5	1650
	·6	1620
	·7	1790
	·8	1860
	·9	1930
	7·0	2000
	·1	2070
	·2	2140
	·3	2210
	·4	2280
	·5	2350	—Mean Nile flood.
	·6	2420
	·7	2490
	·8	2560
	·9	2630
	8·0	2700
	·1	2770
	·2	2840
	·3	2910	—High Nile flood.
	·4	2980
	·5	3050
	·6	3120
	·7	3190
	·8	3260
	·9	3330
	9·0	3400
R. L. of zero in R. L. 85·00 metres.

Table XLVIII.—Canal discharges between Assuan and Assiut.

DISCHARGES OF THE CANALS IN UPPER EGYPT IN 1892.

Name of Canal.	AUGUST				SEPTEMBER
	15	20	25	31	5	10	15	20	25	30
Ramadi	55	66	80	76	82	85	89	91	..	..
Um-Ads	8	9	12	13	16	18	20	..	..	..
Afsûn	25	29	37	39	42	43	45	..	..	..
Fadilia	12	26	44	49	52	55	50	..	..	..
Toukh	10	19	37	42	44	58	60	..	..	..
Rannan	28	36	53	59	62	67	70	..	..	..
Dumrania	26	35	56	62	65	70	74	..	..	..
Rashwania	35	41	58	61	64	70	73	..	..	..
Kasra	49	62	104	133	138	150	150	..	..	..
Zarzria	24	30	64	76	77	90	90	..	..	..
Girgawia	54	59	84	95	96	120	120	..	..	..
Sohagia	380	386	470	485	492	520	500	..	..	..
Tahta	44	45	66	75	77	82	85	..	..	..
Shatura	25	24	39	47	49	45	40	..	..	..
Ibrahimia	460	440	540	600	640	700	740	..	..	..
Waladia	6	6	14	20	24	24	24	..	..	..
Minor Canals	10	15	20	30	30	30	20	..	..	..
Total left bank	1250	1320	1790	1980	2060	2250	2270	..	..	..
Kilibia	6	11	17	20	24	28	32	..	..	..
Maala	5	5	18	22	26	30	32	..	..	..
Bayadiâ	30	36	62	69	77	85	90	..	..	..
Shanhuria	46	55	98	108	116	120	125	..	..	..
Shekhia	5	6	10	11	12	12	12	..	..	..
Gilasi	19	30	58	64	68	70	72	..	..	..
Samatha	12	19	41	48	52	60	60	..	..	..
Tarif	10	15	20	25	25	25	25	..	..	..
Hawis	15	22	38	41	44	51	56	..	..	..
Ahaiwia	10	15	20	25	25	25	25	..	..	..
Isaiwia	35	35	55	60	63	70	70	..	..	..
Khizindaria	63	62	86	96	98	110	95	..	..	..
Maanah	35	41	58	67	71	80	85	..	..	..
Sant	6	7	8	10	10	12	12	..	..	..
Minor Canals	4	8	12	15	15	15	15	..	..	..
Total right bank	300	370	600	680	730	800	810	..	..	..
Total both banks	1550	1690	2390	2660	2790	3050	3080	..	..	..

Table XLVIII (continued).—Canal discharges between Assiout and Cairo.

DISCHARGES OF THE CANALS IN UPPER EGYPT IN 1892.

Name of Canal.	AUGUST				SEPTEMBER
	15	20	25	31	5	10	15	20	25	30
Beni-Husain	13	16	20	30	35	40	..	..	..	..
Abu-Bakra	53	38	60	80	85	93	..	..	..	..
Sultani	18	10	20	37	38	40	..	..	..	..
Nina	9	5	10	20	20	20	..	..	..	..
Bahabshin	12	8	14	27	28	33	..	..	..	..
Magnuna	15	15	22	40	45	45	..	..	..	..
Kusheha	70	70	70	70	70	70	..	..	..	..
Zawia	11	7	16	27	28	33	..	..	..	..
Girza	40	38	70	95	100	100	..	..	..	..
Zumr	13	12	14	19	20	19	..	..	..	..
Minor Canals	2	2	4	4	4	4	..	..	..	..
Total left bank	260	220	320	450	480	500	..	..	..	..
Aly Bey	14	13	28	33	20	18	..	..	..	..
Khassâb	19	14	25	35	40	46	..	..	..	..
Minor Canals	7	6	12	12	14	14	..	..	..	..
Total right bank	40	30	70	80	80	80	..	..	..	..
Total both banks	300	250	390	530	560	580	..	..	..	..
Canal discharges between Assuân and Cairo.
Left bank	1510	1540	2110	2430	2540	2750	..	..	..	..
Right bank	340	400	670	760	810	880	..	..	..	..
Total	1850	1940	2780	3190	3390	3630	..	..	..	..
Assuân gauge	6.7	7.4	8.3	8.3	8.6	8.8	8.7	..	..	..
Assiout gauge	6.1	5.9	6.8	7.2	7.4	7.7	8.1	..	..	..
Cairo gauge	5.8	5.5	5.8	6.7	7.0	7.2	7.7	..	..	..

Table XLIX.—Canal discharges between Assuan and Assiut.

DISCHARGES OF THE CANALS IN UPPER EGYPT IN 1893.

Name of Canal.	AUGUST				SEPTEMBER						OCTOBER
	15	20	25	31	5	10	15	20	25	30	5	10	15	25
Ramadi	50	56	58	56	55	60	64	61	64	61	..	..	..	..
Um-Ads	10	12	12	12	13	14	15	15	15	15	..	..	..	..
Asfun	28	33	34	33	31	33	35	33	34	33	..	..	..	..
Fadilia	17	24	26	26	22	24	29	24	22	20	..	..	..	..
Toukh	19	24	26	27	21	24	24	22	27	26	..	..	..	..
Rannan	20	26	29	28	25	25	30	27	30	28	..	..	..	..
Dumrania	33	39	44	43	39	41	46	43	46	44	..	..	..	..
Rashwania	45	52	60	55	50	53	68	60	65	60	..	..	..	..
Kasra	70	72	82	79	72	76	87	82	87	82	..	..	..	..
Zarzuria	38	44	47	46	45	47	52	46	52	46	..	..	..	..
Gergawia	55	55	59	58	56	56	62	57	62	57	..	..	..	..
Sohagia	390	380	400	390	350	360	420	390	430	410	..	..	..	..
Tahta	45	46	47	46	44	45	51	44	52	47	..	..	..	..
Shatura	20	23	26	25	22	17	28	25	29	28	..	..	..	..
Ibrahimia	520	520	560	560	540	540	600	580	600	600	..	..	..	..
Waladia	10	11	12	12	11	11	11	12	12	12	..	..	..	..
Minor Canals	10	15	20	20	20	20	20	20	20	20	..	..	..	..
Total left bank	1380	1430	1550	1510	1420	1440	1640	1540	1650	1590	..	..	..	..
Kilibia	11	13	15	14	14	15	17	16	16	16	..	..	..	..
Maala	11	12	13	12	13	14	16	16	16	16	..	..	..	..
Bayadia	36	44	48	46	40	45	52	44	42	30	..	..	..	..
Shanhuria	56	64	69	63	62	64	70	50	40	30	..	..	..	..
Shekhia	6	7	9	8	6	6	4	5	6	6	..	..	..	..
Gilasi	24	32	34	32	29	30	35	31	34	33	..	..	..	..
Samatha	17	24	27	25	22	24	28	25	27	26	..	..	..	..
Tarif	12	14	16	15	14	15	17	16	17	16	..	..	..	..
Hawis	24	27	29	29	27	27	29	27	25	16	..	..	..	..
Ahaiwia	15	16	16	16	12	12	10	7	4	4	..	..	..	..
Isawia	30	37	40	37	37	39	40	40	43	40	..	..	..	..
Khazindaria	60	62	67	66	60	60	66	65	55	50	..	..	..	..
Maanah	20	30	32	32	29	32	33	34	24	24	..	..	..	..
Sant	6	6	9	8	7	7	7	7	7	7	..	..	..	..
Minor Canals	4	7	10	10	10	10	10	10	10	10	..	..	..	..
Total right bank	340	400	430	410	390	400	430	390	370	320	..	..	..	..
Total both banks	1720	1830	1980	1920	1810	1840	2070	1930	2020	1910	..	..	..	..

Table XLIX (continued).—Canal discharges between Assiout and Cairo.

DISCHARGES OF THE CANALS IN UPPER EGYPT IN 1893.

Name of Canal.	AUGUST				SEPTEMBER						OCTOBER
	15	20	25	31	5	10	15	20	25	30	5	10	15	20	25
Beni Husain	17	18	19	20	14	12	16	17	17	17	..	..	..	..	..
Abu-Bakra	63	50	63	64	60	58	68	65	64	64	..	..	..	..	..
Sultani	17	16	17	17	16	15	17	17	17	17	..	..	..	..	..
Nina	9	8	9	10	10	9	9	9	9	9	..	..	..	..	..
Bahabshin	11	9	11	12	12	10	12	11	13	14	..	..	..	..	..
Magnuna	21	20	20	20	24	23	28	29	30	30	..	..	..	..	..
Kushâska	70	70	50	30	0	0	0	0	0	0	..	..	..	..	..
Zawia	11	8	13	12	13	12	13	15	16	17	..	..	..	..	..
Girza	50	45	50	55	60	60	50	50	40	30	..	..	..	..	..
Zumr	10	10	10	10	6	6	7	12	14	15	..	..	..	..	..
Minor Canals	2	2	2	2	2	2	2	2	2	2	..	..	..	..	..
Total left bank	280	260	260	250	220	210	220	220	220	220	..	..	..	..	..
Ali bey	16	20	27	28	15	12	15	17	20	20	..	..	..	..	..
Khassab	20	20	20	22	19	15	19	15	15	18	..	..	..	..	..
Minor Canals	6	6	6	6	7	7	7	7	7	7	..	..	..	..	..
Total right bank	40	50	50	60	40	30	40	40	40	50	..	..	..	..	..
Total both banks	320	310	310	310	260	240	260	260	260	270	..	..	..	..	..
Canal discharges between Assuan and Cairo.
Left bank	1660	1690	1810	1760	1640	1650	1960	1760	1870	1810	..	..	..	..	..
Right bank	380	450	480	470	430	430	470	430	410	370	..	..	..	..	..
Total	2040	2140	2290	2230	2070	2080	2330	2190	2280	2180	..	..	..	..	..
Assuân gauge	7.0	7.3	7.4	7.3	7.2	7.5	7.6	7.4	7.1	7.3	7.1	7.3	6.9	6.3	6.0
Assiout gauge	6.2	6.2	6.4	6.3	6.2	6.3	6.5	6.5	6.6	6.6	6.4	6.5	6.7	6.7	..
Cairo gauge	5.8	5.6	5.9	6.0	6.0	5.8	6.0	6.0	6.1	6.3	6.2	6.1	6.4	6.5	2.7

Table L.—Calculated Cairo gauges corresponding to Assuân gauges if basin irrigation were to be changed into perennial irrigation.

1874.
Date at Assuân.		Gauges at Assuân.	Discharges at Assuân.	Water con- sumption Assuân to Cairo.	Trough of Nile Assuân to Cairo.	Discharge at Cairo.	Gauges at Cairo.	Date at Cairo.
August	5	6·9	7600	-1020	-1000	5580	5·8	10th	August.
„	10	7·4	8600	do	do	6580	6·4	15th	„
„	15	8·5	11500	do	do	9480	7·8	20th	„
„	20	8·6	11800	do	do	9780	7·9	25th	„
„	25	8·7	12100	do	do	10080	8·1	31st	„
„	31	8·7	12100	do	do	10080	8·2	5th	September.
September	5	9·0	12800	do	do	10780	8·3	10th	„
„	10	8·8	11800	do	0	10780	8·4	15th	„
„	15	8·7	11500	do	+500	10980	8·5	20th	„
„	20	8·4	10600	do	do	10080	8·2	25th	„
„	25	8·4	10600	do	do	10080	8·2	30th	„
„	30	8·2	10050	do	do	9430	7·9	5th	October.
October	5	7·9	9300	do	do	8780	7·6	10th	„
„	10	7·6	8600	do	+700	8280	7·4	15th	„
„	15	7·2	7800	do	do	7480	7·0	20th	„
„	20	6·6	6600	do	do	6280	6·3	25th	„
„	25	6·2	6000	do	do	5680	5·9	31st	„
„	31	5·6	5100	do	do	4780	5·3	5th	November.
November	5	5·2	4500	do	do	4780	4·3	10th	„

Table LI.—Calculated Cairo gauges corresponding to Assuân gauges if basin irrigation were to be changed into perennial irrigation.

1877
Date at Assuân.		Gauges at Assuân.	Discharges at Assuân.	Water con- sumption Assuân to Cairo.	Trough of Nile Assuân to Cairo.	Discharge at Cairo.	Gauges at Cairo.	Date at Cairo.
August	5	4·8	4200	- 800	-300	3100	3·9	10th	August.
„	10	5·4	5100	-1020	do	3780	4·6	15th	„
„	15	5·8	5700	do	do	4380	5·0	20th	„
„	20	6·4	6500	do	do	5180	5·5	25th	„
„	25	6·1	5800	do	do	4480	5·1	31st	„
„	31	6·2	6000	do	do	4680	5·2	5th	September.
September	5	6·3	6200	do	do	4880	5·3	10th	„
„	10	6·1	5800	do	+200	4980	5·5	15th	„
„	15	6·1	5700	do	do	4880	5·4	20th	„
„	20	6·0	5700	do	do	4880	5·4	25th	„
„	25	6·3	6200	do	do	5380	5·6	30th	„
„	30	6·1	5800	do	do	4980	5·4	5th	October.
October	5	5·6	5100	do	do	4280	5·0	10th	„
„	10	5·2	4500	do	do	3680	4·6	15th	„
„	15	4·9	4200	-950	do	3450	4·4	20th	„
„	20	4·6	3800	-900	do	3100	4·0	25th	„
„	25	4·5	3600	-850	do	2950	3·9	31st	„
„	31	4·0	3100	-800	do	2500	3·5	5th	November.
November	5	3·7	2800	-700	do	2300	3·3	10th	„

Table LII.—Calculated Cairo gauges corresponding to Assuân gauges if basin irrigation were to be changed into perennial irrigation.

1878
Date at Assuân.		Gauges at Assuân.	Discharges at Assuân.	Water con- sumption Assuân to Cairo.	Trough of Nile Assuân to Cairo.	Discharge at Cairo.	Gauges at Cairo.	Date at Cairo.
August	5	5·6	5400	-1020	-800	3580	4·4	10th	August.
„	10	5·3	6500	do	do	4680	5·2	15th	„
„	15	7·2	8200	do	do	6380	6·3	20th	„
„	20	7·5	8600	do	do	6780	6·5	25th	„
„	25	8·1	10000	do	do	8180	7·3	31st	„
„	31	7·6	8800	do	+800	8580	7·5	5th	September.
September	5	8·1	10300	do	-600	8580	7·5	10th	„
„	10	8·5	11500	do	do	9880	8·0	15th	„
„	15	8·9	12800	do	do	11180	8·5	20th	„
„	20	8·9	12500	do	do	10880	8·4	25th	„
„	25	9·0	12800	do	do	11180	8·5	30th	„
„	30	9·1	13200	do	do	11580	8·6	5th	October.
October	5	8·9	12100	do	+400	11480	8·6	10th	„
„	10	8·5	10900	do	+800	10680	8·4	15th	„
„	15	7·9	9300	do	do	9080	8·0	20th	„
„	20	7·6	8600	do	do	3380	7·4	25th	„
„	25	7·4	8200	do	do	7980	7·2	31st	„
„	31	6·8	7000	do	do	6780	6·6	5th	November.
November	5	6·3	6200	do	do	5980	6·1	10th	„

---

Appendix L
Gauges of the Nile and its tributaries

Table LIII.—Lake Victoria gauges at Jinja near the Ripon Falls.

Months.	1898			1899			1900			1901			1902			1903			1904
	Maxi- mum.	Mini- mum.	Mean.	Maxi- mum.	Mini- mum.	Mean.	Maxi- mum.	Mini- mum.	Mean.	Maxi- mum.	Mini- mum.	Mean.	Maxi- mum.	Mini- mum.	Mean.	Maxi- mum.	Mini- mum.	Mean.	Maxi- mum.	Mini- mum.	Mean.
January	..	..	..	0·95	0·89	0·90	0·44	0·34	0·39	0·41	0·28	0·35	0·40	0·34	0·38	0·57	0·33	0·42	..	..	..
February	..	..	..	0·91	0·84	0·87	0·43	0·33	0·39	0·38	0·30	0·36	0·43	0·36	0·39	0·71	0·62	0·68	..	..	..
March	..	..	..	0·89	0·83	0·85	0·43	0·33	0·38	0·58	0·42	0·48	0·41	0·34	0·37	0·77	0·66	0·71	..	..	..
April	..	..	..	0·94	0·83	0·84	0·48	0·38	0·42	0·89	0·46	0·66	0·44	0·39	0·43	0·93	0·72	0·78	..	..	..
May	..	..	1·05	1·05	0·85	0·94	0·48	0·42	0·45	0·95	0·81	0·89	0·60	0·44	0·54	1·10	0·84	1·00	..	..	..
June	..	..	0·96	1·02	0·86	0·93	0·47	0·41	0·45	0·93	0·74	0·83	0·55	0·45	0·50	1·22	1·07	1·15	..	..	..
July	..	..	0·99	0·91	0·79	0·86	0·46	0·44	0·45	0·76	0·61	0·68	0·46	0·41	0·44	1·37	1·17	1·24	..	..	..
August	..	..	0·96	0·85	0·56	0·64	0·46	0·43	0·45	0·64	0·46	0·57	0·45	0·38	0·42	1·22	1·00	1·14	..	..	..
September	0·99	0·93	0·95	0·56	0·43	0·48	0·43	0·30	0·38	0·51	0·27	0·39	0·41	0·37	0·39	1·03	0·95	0·98	..	..	..
October	0·98	0·91	0·95	0·43	0·33	0·38	0·30	0·17	0·24	0·51	0·33	0·45	0·40	0·32	0·35	1·17	0·99	1·07	..	..	..
November	0·99	0·91	0·95	0·36	0·33	0·35	0·19	0·11	0·16	0·36	0·29	0·33	0·41	0·33	0·37	1·27	1·05	1·16	..	..	..
December	0·99	0·98	0·95	0·38	0·33	0·35	0·38	0·15	0·26	0·43	0·34	0·40	0·43	0·28	0·36	1·24	1·12	1·16	..	..	..
Mean.	..	..	..	..	..	0·70	..	..	0·37	..	..	0·53	..	..	0·41	..	..	0·96	..	..	..

Months.	1898			1899			1900			1901
	Maxi- mum.	Mini- mum.	Mean.	Maxi- mum.	Mini- mum.	Mean.	Maxi- mum.	Mini- mum.	Mean.	Maxi- mum.	Mini- mum.	Mean.
January	..	..	..	0·95	0·89	0·90	0·44	0·34	0·39	0·41	0·28	0·35
February	..	..	..	0·91	0·84	0·87	0·43	0·33	0·39	0·38	0·30	0·36
March	..	..	..	0·89	0·83	0·85	0·43	0·33	0·38	0·58	0·42	0·48
April	..	..	..	0·94	0·83	0·84	0·48	0·38	0·42	0·89	0·46	0·66
May	..	..	1·05	1·05	0·85	0·94	0·48	0·42	0·45	0·95	0·81	0·89
June	..	..	0·96	1·02	0·86	0·93	0·47	0·41	0·45	0·93	0·74	0·83
July	..	..	0·99	0·91	0·79	0·86	0·46	0·44	0·45	0·76	0·61	0·68
August	..	..	0·96	0·85	0·56	0·64	0·46	0·43	0·45	0·64	0·46	0·57
September	0·99	0·93	0·95	0·56	0·43	0·48	0·43	0·30	0·38	0·51	0·27	0·39
October	0·98	0·91	0·95	0·43	0·33	0·38	0·30	0·17	0·24	0·51	0·33	0·45
November	0·99	0·91	0·95	0·36	0·33	0·35	0·19	0·11	0·16	0·36	0·29	0·33
December	0·99	0·98	0·95	0·38	0·33	0·35	0·38	0·15	0·26	0·43	0·34	0·40
Mean.	..	..	..	..	..	0·70	..	..	0·37	..	..	0·53

Months.	1902			1903			1904
	Maxi- mum.	Mini- mum.	Mean.	Maxi- mum.	Mini- mum.	Mean.	Maxi- mum.	Mini- mum.	Mean.
January	0·40	0·34	0·38	0·57	0·33	0·42	..	..	..
February	0·43	0·36	0·39	0·71	0·62	0·68	..	..	..
March	0·41	0·34	0·37	0·77	0·66	0·71	..	..	..
April	0·44	0·39	0·43	0·93	0·72	0·78	..	..	..
May	0·60	0·44	0·54	1·10	0·84	1·00	..	..	..
June	0·55	0·45	0·50	1·22	1·07	1·15	..	..	..
July	0·46	0·41	0·44	1·37	1·17	1·24	..	..	..
August	0·45	0·38	0·42	1·22	1·00	1·14	..	..	..
September	0·41	0·37	0·39	1·03	0·95	0·98	..	..	..
October	0·40	0·32	0·35	1·17	0·99	1·07	..	..	..
November	0·41	0·33	0·37	1·27	1·05	1·16	..	..	..
December	0·43	0·28	0·36	1·24	1·12	1·16	..	..	..
Mean.	..	..	0·41	..	..	0·96	..	..	..

Table LIV.—Wadelai gauges.

Year.	Date.	Jan.	Feb.	Mar.	Apr.	May.	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.
1901	1	..	..	..	..	..	..	..	..	..	..	..	0·74
	5	..	..	..	..	..	..	..	..	..	..	..	0·66
	10	..	..	..	..	..	..	..	..	..	..	0·69	0·66
	15	..	..	..	..	..	..	..	..	..	..	0·69	0·64
	20	..	..	..	..	..	..	..	..	..	..	0·67	0·62
	25	..	..	..	..	..	..	..	..	..	..	0·75	0·58
	30	..	..	..	..	..	..	..	..	..	..	0·74	0·58
	Mean	..	..	..	..	..	..	..	..	..	..	0·72	0·63
1902	1	0·58	0·30	0·25	0·13	0·10	0·15	0·10	0·20	0·29	0·33	0·71	0·86
	5	0·55	0·32	0·28	0·09	0·13	0·15	0·11	0·19	0·43	0·41	0·71	0·89
	10	0·53	0·27	0·25	0·09	0·14	..	0·08	0·25	0·51	0·38	0·61	0·91
	15	0·43	0·22	0·18	0·08	0·16	0·10	0·18	0·18	0·33	0·52	0·81	0·86
	20	0·38	0·25	0·20	0·10	0·25	0·08	0·27	0·20	0·33	0·66	0·86	0·85
	25	0·36	0·28	0·20	0·11	0·23	0·13	0·20	0·33	0·30	0·51	0·75	0·82
	30	0·32	..	0·13	0·10	0·18	0·10	0·19	0·28	0·33	0·65	0·86	0·76
	Mean	0·44	0·26	0·20	0·09	0·17	0·12	0·15	0·24	0·37	0·49	0·76	0·85
1903	1	0·76	0·69	0·58	0·53	0·53	0·56	1·02	1·07	1·07	1·60	1·70	1·93
	5	0·76	0·69	0·61	0·51	0·56	0·61	0·84	1·12	1·07	1·60	1·70	1·93
	10	0·76	0·67	0·57	0·53	0·56	0·76	0·89	1·07	1·12	1·60	1·83	1·93
	15	0·74	0·61	0·56	0·46	0·58	0·79	0·84	1·17	1·37	1·60	1·83	1·93
	20	0·74	0·63	0·55	0·51	0·66	0·79	0·89	1·14	1·45	1·57	1·88	1·93
	25	0·74	0·61	0·53	0·48	0·61	0·81	1·12	1·12	1·52	1·65	1·90	1·90
	30	0·76	..	0·53	0·53	0·61	1·00	1·07	1·07	1·60	1·68	1·93	1·90
	Mean	0·75	0·64	0·56	0·50	0·59	0·77	0·95	1·12	1·32	1·63	1·84	1·92
1904	1	1·90	1·90	1·70	1·70	..	1·74	..	..	..	..	..	..
	5	1·90	1·90	1·73	1·70	..	..	..	..	..	..	..	..
	10	1·90	1·87	1·69	1·70	..	..	..	..	..	..	..	..
	15	1·90	1·78	1·68	1·71	..	..	..	..	..	..	..	..
	20	1·90	1·73	1·68	1·71	..	..	..	..	..	..	..	..
	25	1·90	1·74	1·68	1·74	..	..	..	..	..	..	..	..
	30	1·90	..	1·71	1·74	..	..	..	..	..	..	..	..
	Mean	1·90	1·80	1·69	1·71	..	..	..	..	..	..	..	..

Table LV.—Gondokoro gauges.

1901
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sep- tem- ber.	Date.	Month.
	Jan.								Oct.
1	·22	1	0·34	0·44	0·33	0·34	0·63	1	0·41
5	·20	2	0·34	0·42	0·33	0·34	0·63	5	0·39
10	·18	3	0·38	0·43	0·32	0·35	0·64	10	0·51
15	·17	4	0·40	0·43	0·33	0·34	0·63	15	0·60
20	·12	5	0·71	0·45	0·33	0·43	0·63	20	0·71
25	·12	6	0·56	0·43	0·60	0·54	0·69	25	0·67
30	·12	7	0·52	0·41	0·47	0·44	0·63	30	0·69
Mean	·15	8	0·46	0·41	0·37	0·47	0·67	Mean	0·60
	Feb.	9	0·42	0·41	0·59	0·64	0·67		Nov.
1	·12	10	0·42	0·41	0·39	0·63	0·67	1	0·64
5	·12	11	0·42	0·41	0·35	0·62	0·65	5	0·67
10	·12	12	0·56	0·41	0·34	0·46	0·66	10	0·64
15	·11	13	0·38	0·40	0·34	0·41	0·63	15	0·49
20	·10	14	0·38	0·40	0·56	0·48	0·63	20	0·57
25	·10	15	0·40	0·40	0·52	0·46	0·56	25	0·59
28	·09	16	0·36	0·40	0·56	0·48	0·47	30	0·60
Mean	·11	17	0·34	0·40	0·61	1·09	0·43	Mean	0·61
	March	18	0·36	0·40	0·43	1·09	0·41		Dec.
1	·11	19	0·34	0·40	0·35	0·62	0·39	1	0·61
5	·10	20	0·34	0·40	0·35	0·46	0·36	5	0·59
10	·10	21	0·36	0·40	0·36	0·44	0·43	10	0·57
15	·12	22	0·46	0·40	0·34	0·72	0·45	15	0·53
20	·26	23	0·40	0·40	0·34	0·52	0·49	20	0·49
25	·22	24	0·40	0·40	0·35	0·54	0·45	25	0·47
30	·27	25	0·42	0·36	0·34	0·43	0·45	30	0·45
Mean	·18	26	0·52	0·42	0·36	1·24	0·43	Mean	0·52
	April	27	0·42	0·54	0·35	0·67	0·41
1	0·08	28	0·46	0·40	0·35	0·66	0·39
5	0·08	29	0·46	0·34	0·35	0·62	0·41
10	0·14	30	0·46	0·34	0·35	..	0·41
15	0·32	31	0·46	..	0·35	..	..
20	0·44	Mean	0·43	0·40	0·40	0·57	0·53
25	0·42
30	0·30
Mean	0·25
1902
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sep- tem- ber.	Date.	Month.
	Jan.								Oct.
1	0·45	1	0·19	0·06	-0·01	0·44	0·54	1	0·48
5	0·43	2	0·20	0·08	0·02	0·36	0·52	5	0·26
10	0·43	3	0·22	0·14	0·02	0·44	0·74	10	0·54
15	0·47	4	0·26	0·11	0·04	0·54	1·04	15	0·79
20	0·45	5	0·24	0·09	0·71	0·49	0·94	20	0·80
25	0·41	6	0·19	0·09	0·34	0·42	0·90	25	0·76
30	0·41	7	0·19	-0·03	0·08	0·48	1·24	30	0·99
Mean	0·43	8	0·14	0·04	0·04	1·54	0·96	Mean	0·71
	Feb.	9	0·16	0·09	0·04	1·09	0·84		Nov.
1	0·39	10	0·18	0·06	-0·01	1·52	1·04	1	1·07
5	0·36	11	0·34	0·03	-0·01	1·49	0·99	5	0·77
10	0·35	12	0·60	0·07	0·04	1·44	0·77	10	0·84
15	0·33	13	0·48	0·02	0·04	1·42	0·74	15	—
20	0·33	14	0·44	-0·01	0·24	1·46	0·84	20	1·23
25	0·36	15	0·51	-0·06	0·04	1·42	0·96	25	0·99
28	0·40	16	0·45	-0·03	0·02	1·42	1·28	30	0·96
Mean	0·35	17	0·39	-0·01	-0·01	1·44	0·94	Mean	1·00
	March	18	0·53	-0·08	-0·01	1·38	0·94		Dec.
1	0·34	19	0·57	-0·06	0·09	1·32	0·84	1	0·94
5	0·36	20	0·64	-0·03	0·12	1·38	0·89	5	0·94
10	0·38	21	0·46	-0·06	0·40	1·46	0·82	10	0·92
15	0·46	22	0·39	-0·09	0·87	1·52	0·76	15	0·89
20	0·50	23	0·30	-0·14	0·48	1·62	0·62	20	0·85
25	0·34	24	0·27	+0·04	0·30	1·74	0·64	25	0·81
30	0·26	25	0·24	0·01	0·26	1·52	0·91	30	0·74
Mean	0·40	26	0·19	0·02	0·24	0·54	0·66	Mean	0·87
	April	27	0·16	-0·06	0·22	0·94	0·62
1	0·14	28	0·14	-0·04	0·22	0·74	0·54
5	0·13	29	0·11	-0·01	0·46	0·70	0·54
10	0·04	30	0·07	-0·02	0·54		0·57
15	-0·01	31	0·04	..	0·58	0·60	..
20	0·19	Mean	0·30	0·01	0·19	1·09	0·82
25	0·05
30	0·13
Mean	0·07
1903
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sep- tem- ber.	Date.	Month.
	Jan.								Oct.
1	0·74	1	0·72	1·15	1·37	1·55	1·86	1	2·18
5	0·71	2	1·70	1·06	1·38	1·57	1·82	5	2·11
10	0·66	3	0·68	1·06	1·46	1·65	1·90	10	2·12
15	0·63	4	0·68	1·06	1·43	1·65	2·54	15	2·45
20	0·63	5	0·70	1·00	1·39	1·72	2·24	20	2·06
25	0·61	6	0·98	1·10	1·44	1·61	2·23	25	2·20
30	0·63	7	0·92	1·61	1·46	1·73	2·71	30	2·20
Mean	0·65	8	0·85	1·36	1·51	2·16	2·50	Mean	2·16
	Feb.	9	0·89	1·35	1·49	2·08	2·33		Nov.
1	0·62	10	1·06	1·10	1·46	2·03	2·29	1	2·20
5	0·61	11	0·80	1·07	1·41	2·50	2·24	5	2·13
10	0·63	12	1·42	1·06	1·45	2·03	2·16	10	2·05
15	0·58	13	1·48	1·09	1·56	2·07	2·09	15	1·92
20	0·59	14	0·85	1·08	1·49	1·86	2·07	20	1·91
25	0·56	15	0·85	1·06	1·35	2·12	2·20	25	1·90
28	0·53	16	0·89	1·55	1·40	1·99	2·23	30	1·77
Mean	0·59	17	0·86	1·47	1·35	1·90	2·37	Mean	1·96
	March	18	0·85	1·44	1·40	1·93	2·48		Dec.
1	0·51	19	0·85	1·40	1·40	1·86	2·57	1	1·77
5	0·51	20	0·86	1·44	1·40	1·85	2·70	5	0·89
10	0·51	21	0·86	1·40	1·41	1·90	2·76	10	0·86
15	0·51	22	1·35	1·52	1·52	1·95	2·76	15	0·81
20	0·52	23	1·52	1·40	1·61	1·86	2·96	20	0·79
25	0·51	24	1·02	1·40	1·52	1·82	2·96	25	0·79
30	0·50	25	1·00	1·37	1·55	1·83	2·58	30	0·76
Mean	0·51	26	0·97	1·27	1·56	2·20	2·45	Mean	0·88
	April.	27	1·03	1·30	1·67	2·16	2·33
1	0·50	28	1·00	1·32	1·61	2·07	2·23
5	0·48	29	0·90	1·43	1·65	1·82	2·20
10	0·48	30	0·89	1·35	1·63	1·88	2·18
15	0·55	31	0·91	..	1·52	1·90	..
20	0·57	Mean	0·95	1·27	1·48	1·91	2·36
25	0·57
30	0·64
Mean	0·53
1904
Date.	Month.	Date.	May.	June.
	Jan.
1	0·79	1	0·68	0·90
5	0·78	2	0·68	0·90
10	0·78	3	0·70	0·90
15	0·76	4	0·70	0·90
20	0·84	5	0·70	0·90
25	0·84	6	0·70	0·88
30	0·82	7	0·68	0·84
Mean.	0·80	8	0·68	0·80
	Feb.	9	0·68	0·76
1	0·82	10	0·68	0·76
5	0·80	11	0·78	0·74
10	0·74	12	0·78	0·72
15	0·72	13	0·84	0·74
20	0·70	14	0·84	0·72
25	0·68	15	0·80	0·72
28	0·74	16	0·80	0·70
Mean.	0·73	17	0·76	0·70
	March	18	0·78	0·70
1	0·68	19	0·80	0·74
5	0·70	20	0·80	0·82
10	0·66	21	0·84	0·70
15	0·66	22	0·88	0·70
20	0·66	23	0·88	0·74
25	0·84	24	0·88	0·78
30	0·90	25	1·00	0·74
Mean.	0·71	26	0·88	0·88
	April.	27	0·84	0·78
1	0·74	28	0·84	0·84
5	0·72	29	0·84	0·82
10	0·72	30	0·90	0·88
15	0·80	31	..	..
20	0·84	Mean.	0·79	0·79
25	0·74
30	..
Mean.	0·77

Table LVI.—Mongalla gauges.

1903
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sep- tem- ber.	Date.	Month.
	January.								October.
1		1		1·65	1·93	2·19	2·52	1	2·83
5		2		1·47	1·89	2·50	2·45	5	2·83
10		3		1·47	1·79	2·34	2·58	10	2·81
15		4		1·51	1·86	2·30	2·73	15	2·91
20		5		1·75	1·91	2·28	2·85	20	2·80
25		6		1·96	1·86	2·21	2·90	25	2·80
30		7		1·75	1·82	2·14	3·02	30	2·87
Mean.		8		1·91	1·75	2·12	3·16	Mean.	2·83
	February.	9		1·89	1·84	2·59	3·14		Nov.
1		10		1·89	1·84	2·63	3·08	1	2·84
5		11		1·58	1·82	2·73	2·90	5	2·81
10		12		1·58	1·75	2·73	2·84	10	2·81
15		13		1·61	1·75	2·68	2·82	15	2·79
20		14		1·61	1·93	2·66	2·82	20	2·66
25		15		1·98	1·86	2·63	2·82	25	2·35
28		16		1·98	1·86	2·52	2·84	30	2·27
Mean.		17		2·10	1·89	2·56	2·92	Mean.	2·64
	March.	18		2·10	1·82	2·56	3·06		Dec.
1		19		2·10	1·96	2·63	3·12	1	2·26
5		20		1·82	1·93	2·63	3·18	5	2·21
10		21		1·95	2·00	2·59	3·30	10	2·17
15		22		1·89	2·00	2·65	3·40	15	2·14
20		23		1·86	2·05	2·66	3·52	20	2·10
25		24		1·82	2·05	2·63	3·54	25	2·03
30		25		1·75	2·07	2·61	3·42	30	2·02
Mean.		26		1·72	2·07	2·49	3·32	Mean.	2·13
	April.
1	0·83	27		1·75	2·12	2·52	3·18
5	0·87	28		1·68	2·13	2·52	3·05
10	0·90	29		1·89	2·16	..	3·00
15	0·89	30		1·93	2·21	..	2·92
20	0·96	31		..	2·21
25	1·14	Mean.		1·82	1·96	2·49	2·97
30	0·99
Mean.	0·92
1904
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sep- tem- ber.	Date.	Month.
January.									October.
1	2·03	1	1·91	2·17
5	2·00	2	1·89	2·24
10	1·98	3	1·89	2·17
15	1·97	4	1·89	2·21
20	1·96	5	1·89	2·17
25	1·92	6	1·96	2·17
30	1·91	7	1·89	2·14
Mean.	1·97	8	1·89	2·10
	February.	9	1·89	2·07
1	1·91	10	1·89	2·03
5	1·89	11	1·96	2·00
10	1·86	12	2·03	2·00
15	1·82	13	2·10	2·00
20	1·82	14	2·03	2·00
25	1·82	15	2·07	2·00
28	1·82	16	2·03	1·96
Mean.	1·85	17	2·03	1·96
	March.	18	2·03	1·96
1	1·82	19	2·03	2·10
5	1·81	20	2·07	2·03
10	1·79	21	2·07	2·00
15	1·82	22	2·17	1·98
20	1·77	23	2·17	1·98
25	1·79	24	2·17	2·00
30	1·96	25	2·21	2·07
Mean.	1·82	26	2·21	2·07
	April.
1	1·93	27	2·17	2·10
5	1·82	28	2·14	2·10
10	1·82	29	2·12	2·07
15	1·93	30	2·10	2·03
20	2·07	31	2·21
25	1·96	Mean.	2·03	2·07
30	1·89
Mean.	1·91

Table LVII.—Sobat River gauges at Nasser.

Year.	Date.	Jan.	Feb.	Mar.	Apr.	May.	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.
1903	1	..	..	..	..	..	..	..	..	..	..	6·30	..
	5	..	..	..	..	..	..	..	..	..	..	6·30	..
	10	..	..	..	..	..	..	..	..	..	..	6·28	..
	15	..	..	..	..	..	..	..	..	..	..	6·24	..
	20	..	..	..	..	..	..	..	..	..	..	6·18	..
	25	..	..	..	..	..	..	..	..	..	6·46	6·14	..
	30	..	..	..	..	..	..	..	..	..	6·29	..	..
	Mean	..	..	..	..	..	..	..	..	..	..	6·23	..
1904	1	5·11	2·02	1·26	2·00	1·96	4·59	..	..	..	..	..	..
	5	4·99	1·92	1·34	2·00	2·26	4·68	..	..	..	..	..	..
	10	4·49	1·82	1·40	1·82	2·88	4·82	..	..	..	..	..	..
	15	3·88	1·60	1·86	1·90	3·42	5·02	..	..	..	..	..	..
	20	2·92	1·50	2·14	2·38	4·10	..	..	..	..	..	..	..
	25	2·24	1·36	1·88	2·38	..	..	..	..	..	..	..	..
	30	2·10	..	2·00	2·00	..	..	..	..	..	..	..	..
	Mean	3·43	1·64	1·71	2·07	..	..	..	..	..	..	..	..

Table LVIII.—Sobat River gauges at Dulaib Hilla.

Year.	Date.	Jan.	Feb.	Mar.	Apr.	May.	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.
1903	1	..	..	..	..	0·00	1·11	1·71	2·30	2·80	3·26	3·48	3·52
	5	..	..	..	..	0·09	1·22	1·80	2·39	2·86	3·27	3·48	3·52
	10	..	..	..	..	0·28	1·36	1·87	2·45	2·93	3·36	3·49	3·53
	15	..	..	..	..	0·40	1·53	1·95	2·52	3·05	3·42	3·49	3·54
	20	..	..	..	..	0·62	1·56	2·08	2·57	3·11	3·44	3·50	3·53
	25	..	..	..	..	0·81	1·65	2·18	2·70	3·16	3·45	3·50	3·51
	30	..	..	..	..	1·00	1·70	2·28	2·74	3·26	3·47	3·51	3·45
	Mean	..	..	..	..	0·47	1·46	1·99	2·54	3·03	3·40	3·49	3·51
1904	1	3·42	1·92	0·93	0·88	0·81	1·56	2·00	..	..	..	..	..
	5	3·36	1·65	0·87	0·88	0·73	1·65	..	..	..	..	..	..
	10	3·19	1·42	0·88	0·86	0·86	1·67	..	..	..	..	..	..
	15	3·04	1·24	0·91	0·78	0·99	1·72	..	..	..	..	..	..
	20	2·74	1·12	0·97	0·81	1·21	1·83	..	..	..	..	..	..
	25	2·36	1·00	1·00	0·90	1·39	1·90	..	..	..	..	..	..
	30	2·01	..	0·91	0·84	1·49	1·98	..	..	..	..	..	..
	Mean	2·77	1·30	0·92	0·85	1·08	1·76	..	..	..	..	..	..

Table LIX.— White Nile gauges at Tewfikieh.

Year.	Date.	Jan.	Feb.	Mar.	Apr.	May.	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.
1903	1	..	..	..	..	0·24	1·19	1·71	2·11	2·76	3·47	3·53	3·56
	5	..	..	..	..	0·24	1·30	1·78	2·15	2·86	3·55	3·54	3·58
	10	..	..	..	..	0·34	1·42	1·88	..	3·07	3·39	3·54	3·58
	15	..	..	..	..	0·53	1·51	1·89	..	3·20	3·41	3·55	3·59
	20	..	..	..	0·22	0·74	1·58	2·01	..	3·26	3·46	3·56	3·59
	25	..	..	..	0·24	..	1·61	2·09	..	3·37	3·50	3·55	3·58
	30	..	..	..	0·24	..	1·69	2·16	..	3·46	3·52	3·56	3·57
	Mean	..	..	..	..	..	1·48	1·94	..	3·15	3·44	3·55	3·58
1904	1	3·57	2·07	0·97	0·91	0·84	1·56	..	..	..	..	..	..
	5	3·54	1·76	0·91	0·91	0·74	1·67	..	..	..	..	..	..
	10	3·48	1·48	0·92	0·89	0·86	1·69	..	..	..	..	..	..
	15	3·36	1·25	0·94	0·81	1·02	1·74	..	2·79	..	..	..	..
	20	3·10	1·09	1·00	0·84	1·25	1·87	..	2·87	..	..	..	..
	25	2·69	1·07	1·03	0·93	1·43	1·94	..	2·92	..	..	..	..
	30	2·23	..	0·97	0·84	1·53	2·02	..	2·98	..	..	..	..
	Mean	3·16	1·37	0·96	0·88	1·11	1·79	..	..	..	..	..	..

Table LX.—Duem gauges.

Year.	Date.	Jan.	Feb.	Mar.	Apr.	May.	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.
1901	1	..	0·91	0·66	0·43	0·61	0·59	1·43	2·88	4·10	3·40	2·40	2·12
	5	..	0·90	0·66	0·40	0·64	0·66	1·44	3·18	4·28	3·36	2·35	2·10
	10	..	0·88	0·60	0·46	0·62	0·77	1·54	3·38	4·16	2·90	2·33	2·00
	15	..	0·85	0·51	0·27	0·51	0·91	1·78	3·80	4·22	2·70	2·28	1·86
	20	..	0·80	0·47	0·36	0·52	1·08	1·96	4·12	4·08	2·85	2·30	1·80
	25	..	0·75	0·45	0·46	0·52	1·22	1·98	4·12	3·70	2·38	2·30	1·64
	30	..	0·68	0·45	0·58	0·51	1·32	2·48	4·04	3·46	2·42	2·14	1·46
	Mean	..	0·82	0·54	0·42	0·56	0·94	1·80	3·65	4·00	2·84	2·30	1·85
1902	1	1·38	0·78	0·60	0·59	0·56	0·77	1·28	2·12	3·52	3·50	2·36	..
	5	1·24	0·74	0·58	0·62	0·52	0·81	1·40	2·20	3·49	3·48	2·26	..
	10	1·16	0·73	0·51	0·58	0·49	0·95	1·48	2·55	3·62	3·36	2·20	..
	15	1·07	0·66	0·54	0·58	0·54	1·04	1·60	2·82	3·72	3·00	2·14	2·02
	20	0·95	0·60	0·60	0·55	0·59	1·08	1·72	2·91	3·72	2·68	2·11	1·99
	25	0·90	0·60	0·66	0·61	0·66	1·14	1·89	3·17	3·58	2·57	2·00	2·01
	30	0·80	0·60	0·62	0·57	0·74	1·24	2·10	3·52	3·51	2·45	2·00	1·98
	Mean	1·07	0·67	0·59	0·58	0·58	1·00	1·64	2·75	3·60	3·00	2·15	..
1903	1	1·90	1·04	0·72	0·41	0·38	0·74	1·31	1·27	4·33	4·18	3·13	2·34
	5	1·90	1·02	0·71	0·40	0·34	0·82	1·34	2·62	4·30	4·01	3·02	2·16
	10	1·75	0·99	0·64	0·42	0·33	0·98	1·54	3·18	4·48	3·82	2·82	1·96
	15	1·45	0·89	0·55	0·41	0·36	1·07	1·74	3·70	4·38	3·62	2·66	1·92
	20	1·39	0·88	0·48	0·38	0·41	1·20	1·80	3·84	4·18	3·36	2·56	1·84
	25	1·20	0·80	0·47	0·37	0·52	1·28	2·03	4·12	4·28	3·40	2·42	1·76
	30	1·06	0·77	0·42	0·37	0·61	1·33	2·24	4·22	4·22	3·41	2·36	1·70
	Mean	1·52	0·90	0·57	0·40	0·42	1·06	1·70	3·42	4·30	3·70	2·70	1·95
1904	1	1·70	1·38	0·88	0·26	0·19	0·24	0·50	2·00	2·64	..	..	..
	5	1·66	1·32	0·66	0·30	0·18	0·30	0·51	2·90	2·80	..	..	..
	10	1·62	1·28	0·50	0·28	0·16	0·40	0·70	3·40	3·00	..	..	..
	15	1·60	1·20	0·35	0·25	0·15	0·41	0·95	3·15	..	..	..	..
	20	1·54	1·14	0·30	0·22	0·14	0·48	1·30	2·70	..	..	..	..
	25	1·46	1·00	0·28	0·21	0·22	0·49	1·55	2·45	..	..	..	..
	30	1·40	0·94	0·26	0·19	0·24	0·50	1·90	2·64	..	..	..	..
	Mean	1·57	1·18	0·46	0·24	0·18	0·40	1·06	2·75	..	..	..	..

Table LXI.—Wad Medani gauges.

1901
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sept.	Date.	Month.
	January	..	..	..	..	..	..		October.
		..	..	..	..	..	..	1	..
		..	..	..	..	..	..	5	..
		..	..	..	..	..	..	10	..
		..	..	..	..	..	..	15	..
		..	..	..	..	..	..	20	..
		..	..	..	..	..	..	25	..
		..	..	..	..	..	..	30	..
		..	..	..	..	..	..	Mean.	..
	February	..	..	..	..	..	..		Novemb.
		..	..	..	..	..	..	1	4·49
		..	..	..	..	..	..	5	4·19
		..	..	..	..	..	..	10	3·85
		..	..	..	..	..	..	15	3·53
		..	..	..	..	..	..	20	3·25
		..	..	..	..	..	..	25	3·07
		..	..	..	..	..	..	30	3·01
		..	..	..	..	..	..	Mean.	3·58
	March	..	..	..	..	..	..		Decemb.
		..	..	..	..	..	..	1	2·89
		..	..	..	..	..	..	5	2·67
		..	..	..	..	..	..	10	2·47
		..	..	..	..	..	..	15	2·33
		..	..	..	..	..	..	20	2·19
		..	..	..	..	..	..	25	2·05
		..	..	..	..	..	..	30	1·91
		..	..	..	..	..	..	Mean.	2·33
	April	..	..	..	..	..	..
1902
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sept.	Date.	Month.
	January.								October.
1	1·89	1	0·39	1·59	3·80	7·56	9·62	1	9·94
5	1·81	2	0·33	2·11	3·80	7·86	10·12	5	9·30
10	1·69	3	0·33	2·11	3·70	7·94	10·42	10	8·00
15	1·61	4	0·37	2·07	3·80	8·32	10·32	15	7·38
20	1·55	5	0·39	2·03	4·16	8·42	10·30	20	7·08
25	1·49	6	0·41	1·97	4·46	8·56	10·10	25	6·68
30	1·39	7	0·39	1·91	4·68	8·76	10·40	30	6·14
Mean.	1·62	8	0·39	1·97	4·64	8·86	10·50	Mean.	7·65
	February.	9	0·37	2·25	4·56	9·00	10·40		Nov.
1	1·37	10	0·35	2·15	4·38	9·10	10·40	1	5·90
5	1·31	11	0·41	2·00	4·48	9·14	10·28	5	5·66
10	1·21	12	0·48	1·77	4·28	9·16	10·60	10	5·24
15	1·13	13	0·51	1·67	4·56	9·14	10·70	15	4·94
20	1·07	14	0·61	1·61	4·70	9·02	10·48	20	4·74
25	1·03	15	0·77	1·65	4·86	8·96	10·28	25	4·60
28	0·99	16	0·89	1·99	4·80	8·66	10·32	30	4·28
Mean.	1·15	17	0·87	2·57	5·10	8·66	10·32	Mean.	5·02
	March.	18	1·01	2·97	5·20	8·96	10·00		Dec.
1	0·98	19	0·95	3·27	5·40	9·48	10·30	1	—
5	0·91	20	0·93	3·39	5·48	10·08	10·26	5	4·00
10	0·79	21	0·71	3·39	5·42	10·00	10·00	10	3·73
15	0·87	22	0·61	3·19	5·66	9·66	9·80	15	3·54
20	1·01	23	0·65	3·04	5·70	9·46	9·80	20	3·40
25	0·84	24	0·61	2·94	5·66	9·52	10·00	25	3·18
30	0·67	25	0·57	3·04	5·76	9·92	10·10	30	2·94
Mean.	0·87	26	0·61	3·89	5·74	10·26	9·90	Mean.	3·51
	April.
1	0·63	27	0·65	4·29	5·72	10·46	9·95
5	0·55	28	0·71	4·24	6·36	10·52	10·00
10	0·43	29	0·91	4·24	6·79	10·32	10·26
15	0·43	30	0·11	4·28	7·06	10·02	10·26
20	0·51	31	0·21		7·28	9·72
25	0·57	Mean.	0·56	2·65	5·09	9·21	10·20
30	0·41
Mean.	0·50
1903
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sept.	Date.	Month.
	January.								October.
1	2·88	1	0·96	3·15	4·71	7·75	11·02	1	9·48
5	2·70	2	0·96	3·25	5·27	9·11	10·68	5	8·84
10	2·56	3	0·94	3·85	5·61	9·81	10·44	10	8·42
15	2·46	4	0·92	4·05	5·81	10·11	10·40	15	7·94
20	2·36	5	0·90	3·61	5·85	10·11	10·50	20	8·84
25	2·26	6	0·88	3·65	6·10	10·07	10·64	25	8·25
30	2·16	7	0·88	3·49	6·23	10·21	10·56	30	7·33
Mean.	2·42	8	0·90	3·41	6·45	10·15	10·50	Mean.	8·41
	February.	9	0·86	3·63	6·55	9·99	10·74		Nov.
1	2·12	10	0·82	3·79	6·57	9·89	10·52	1	7·19
5	2·04	11	0·84	3·90	6·81	10·19	10·46	5	6·68
10	2·00	12	0·86	4·20	7·03	10·59	10·40	10	6·12
15	1·90	13	0·88	4·30	7·13	10·71	10·06	15	5·70
20	1·84	14	0·92	4·42	6·77	10·57	9·96	20	5·55
25	1·72	15	0·98	4·64	6·74	10·32	9·92	25	5·14
28	1·70	16	1·02	4·82	6·57	10·49	9·94	30	4·96
Mean.	1·91	17	1·06	4·70	6·91	10·41	9·92	Mean.	5·83
	March.	18	1·14	4·62	7·05	10·49	9·96		Dec.
1	1·68	19	1·26	4·52	7·05	10·49	10·12	1	4·92
5	1·60	20	1·40	4·32	7·39	10·73	10·32	5	4·80
10	1·52	21	1·66	4·30	8·01	10·71	10·42	10	4·54
15	1·44	22	1·76	4·28	7·97	10·71	10·56	15	4·40
20	1·34	23	1·92	4·28	7·81	10·47	10·52	20	4·10
25	1·32	24	2·06	4·25	7·87	10·39	10·46	25	3·84
30	1·30	25	2·20	4·51	7·75	10·39	10·32	30	3·60
Mean.	1·44	26	2·74	4·31	7·77	10·47	10·18	Mean.	4·28
	April.	27	1·51	4·21	7·80	10·41	9·72
1	1·24	28	3·43	4·17	7·73	10·61	9·42
5	1·10	29	3·39	4·13	7·77	10·67	9·24
10	1·10	30	3·34	4·41	7·67	10·80	9·22
15	1·08	31	3·25		7·70	10·92
20	1·04	Mean.	1·50	4·10	6·92	10·28	10·23
25	0·98
30	0·98
Mean.	1·06
1904
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sept.
	January.
1	3·64	1	1·50	2·36	4·24	9·60	9·50
5	3·56	2	1·48	2·50	4·58	10·30	9·58
10	3·48	3	1·66	2·88	4·82	10·10	9·50
15	3·36	4	1·66	3·32	5·22	9·90	9·50
20	3·15	5	1·64	3·40	5·52	9·70	9·40
25	3·08	6	1·64	3·28	5·52	9·60	9·30
30	2·80	7	1·62	3·24	5·22	9·40	9·30
Mean.	3·28	8	1·64	3·08	4·92	9·50	9·20
	February.	9	1·56	2·98	4·82	9·50	9·20
1	2·76	10	1·62	3·00	4·96	9·40	9·29
5	2·58	11	1·66	2·86	5·80	9·30	9·30
10	2·46	12	1·76	2·78	6·18	9·20	9·30
15	2·22	13	1·80	2·78	6·10	9·20	9·40
20	2·06	14	2·00	2·46	6·48	9·20	9·44
25	1·86	15	2·00	2·34	7·12	9·00
28	1·78	16	1·88	2·32	6·92	8·80
Mean.	2·23	17	1·88	2·30	6·90	8·80
	March.	18	1·82	2·34	6·80	8·90
1	1·72	19	1·64	2·34	6·70	8·96
5	1·70	20	1·70	2·34	6·80	9·10
10	1·64	21	1·72	2·50	7·10	9·00
15	1·50	22	1·72	2·42	7·30	9·10
20	1·44	23	1·68	2·48	7·20	9·20
25	1·70	24	1·76	2·52	7·40	9·10
30	1·80	25	1·98	2·54	7·50	9·30
Mean.	1·64	26	2·46	2·68	8·04	9·72
	April.	27	2·50	2·80	8·22	9·50
1	1·80	28	2·52	2·94	8·00	9·30
5	1·76	29	2·48	—	8·04	9·20
10	1·64	30	2·46	3·98	8·70	9·30
15	1·58	31	2·36	9·20	9·30
20	1·50	Mean.	1·86	2·76	6·52	9·34
25	1·50
30	1·50
Mean.	1·60

Table LXII.—Khartoum gauges.

Date	1874						1877						1878
	May	June	July	Aug.	Sept.	Oct.	May	June	July	Aug.	Sept.	Oct.	May	June	July	Aug.	Sept.	Oct.
1	..	1·01	2·50	5·60	7·18	6·66	..	·97	2·81	5·20	4·97	4·30	..	·02	2·63	4·30	6·46	7·20
2	..	1·06	2·50	5·65	7·18	6·66	..	·97	2·77	4·79	4·97	4·30	..	·08	2·54	4·41	6·59	7·11
3	..	1·22	2·50	5·78	7·22	6·55	..	·97	2·68	4·79	4·84	4·25	..	·61	2·50	4·70	6·64	7·18
4	..	1·44	2·59	5·85	7·27	6·50	..	·97	2·54	4·54	4·88	4·21	..	·79	2·45	5·11	6·75	7·00
5	..	1·55	2·68	6·01	7·27	6·41	..	·97	2·54	4·43	4·88	4·21	..	1·13	2·45	5·31	6·82	6·82
6	..	1·60	2·68	6·14	7·20	6·30	..	·92	2·68	4·43	4·88	4·21	..	1·42	2·68	5·38	6·89	6·73
7	..	1·60	2·75	6·23	7·13	6·26	..	1·01	2·86	4·66	4·97	4·12	..	1·49	2·77	5·51	6·98	6·68
8	·07	1·80	2·86	6·32	7·18	6·19	..	·88	2·95	4·84	4·97	4·12	..	1·55	2·95	5·51	6·95	6·64
9	·14	1·98	2·99	6·46	7·18	6·08	..	·83	3·04	4·84	4·97	3·98	..	1·89	2·97	5·51	7·04	6·59
10	·50	1·98	3·04	6·55	7·13	5·92	·02	·83	3·22	4·84	4·97	3·98	·05	1·62	2·97	5·51	7·09	6·55
11	·50	1·76	3·22	6·68	7·09	5·78	·02	·88	3·35	4·97	4·97	3·98	·05	1·62	3·04	5·85	7·16	6·64
12	·86	1·76	3·31	6·77	7·13	5·65	·02	1·24	3·35	5·06	5·00	3·98	·05	1·62	3·29	5·94	7·25	6·35
13	·97	1·76	3·22	6·84	7·22	5·65	·02	1·37	3·22	5·06	5·06	3·98	·05	1·64	3·44	6·03	7·25	6·30
14	·97	1·76	3·49	6·84	7·18	5·60	·02	1·37	3·22	5·06	5·06	3·87	·05	1·73	3·51	6·05	7·31	5·26
15	·99	1·80	3·80	6·91	7·09	5·51	·02	1·60	3·58	4·97	5·11	3·87	·05	1·80	3·51	6·12	7·31	6·19
16	1·04	1·85	4·03	7·04	7·04	5·44	·02	1·73	3·62	4·97	5·11	..	·05	1·80	3·51	6·21	7·36	6·12
17	1·15	1·91	4·12	7·13	7·04	5·38	·02	2·05	3·67	4·97	5·06	..	·05	1·78	3·51	6·21	7·40	6·08
18	1·28	1·91	4·25	7·04	7·04	5·31	·02	1·96	3·67	4·97	4·97	..	·05	1·73	3·51	6·14	7·47	6·03
19	1·35	1·91	4·52	7·00	6·93	5·11	·02	1·87	3·89	4·97	4·97	..	·05	1·69	3·76	6·08	7·47	5·96
20	1·58	1·91	4·61	7·04	6·89	4·97	·02	1·87	4·03	4·97	4·97	..	·05	1·71	4·03	6·01	7·56	5·92
21	1·77	1·96	4·84	6·91	6·89	4·84	·11	1·87	4·12	4·93	4·97	..	·05	1·80	4·07	6·01	7·58	5·78
22	1·60	1·96	4·88	7·00	6·82	4·70	·34	1·96	4·21	4·93	4·84	..	-·02	1·76	4·05	5·78	7·58	5·72
23	1·46	2·00	4·97	6·93	6·82	4·61	·38	2·05	4·30	5·02	4·84	..	0·0	1·82	4·10	5·67	7·52	5·65
24	1·33	2·05	5·11	6·91	6·86	4·43	·68	2·27	4·12	5·02	4·79	..	0·0	2·05	4·30	5·76	7·43	5·56
25	1·26	2·09	5·11	6·98	6·82	4·30	·90	2·27	4·12	5·02	4·75	..	·14	2·21	4·30	5·92	7·43	5·46
26	1·19	2·18	5·31	7·00	6·82	4·21	1·01	2·14	4·12	5·15	4·70	..	·11	2·25	4·21	5·92	7·43	5·38
27	1·19	2·36	5·42	7·00	6·73	4·10	1·19	2·14	4·21	5·15	4·66	..	·05	2·27	4·21	5·94	7·38	5·49
28	1·19	2·41	5·51	7·00	6·66	4·10	1·33	2·14	4·43	5·15	4·57	..	-·02	2·41	4·21	6·14	7·38	5·24
29	1·08	2·41	5·51	7·13	6·66	4·10	1·28	2·41	4·61	5·24	4·57	..	·05	2·50	4·23	6·14	7·38	5·20
30	1·01	2·41	5·51	7·09	6·66	4·10	1·19	2·72	4·70	5·24	4·39	..	·02	2·61	4·30	6·32	7·27	..
31	1·01	..	5·56	7·13	..	4·10	1·06	..	4·77	5·06	..	..	·02	..	4·30	6·44	..	..
Mean	..	1·85	3·98	6·67	7·01	5·34	..	1·54	3·60	4·95	4·89	..	..	1·62	3·49	5·74	6·87	6·16

1901
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sept.	Date.	Month.
	January.								October.
1	1·51	1	0·45	0·47	2·35	4·90	6·10	1	4·36
5	1·44	2	0·48	0·50	2·58	4·96	6·10	5	4·04
10	1·30	3	0·46	0·60	2·75	5·00	6·05	10	3·60
15	1·17	4	0·42	0·64	2·70	5·05	5·08	15	3·44
20	1·05	5	0·42	0·81	2·57	5·05	6·08	20	3·28
25	0·93	6	0·42	0·82	2·60	5·12	5·94	25	3·12
30	0·84	7	0·40	0·85	2·60	5·28	5·88	30	2·91
Mean.	1·15	8	0·39	0·84	2·70	5·40	5·91	Mean.	3·48
	February.	9	0·37	0·80	2·82	5·47	5·95		Novem.
1	0·84	10	0·34	0·77	2·90	5·55	5·98	1	2·83
5	0·81	11	0·34	0·98	2·92	5·45	5·92	5	2·67
10	0·73	12	0·32	1·28	2·97	5·40	5·98	10	2·43
15	0·67	13	0·37	1·39	3·00	5·56	5·98	15	2·28
20	0·60	14	0·25	1·51	3·08	5·70	6·00	20	2·16
25	0·45	15	0·25	1·70	3·17	5·85	5·96	25	2·00
28	0·44	16	0·25	1·60	3·30	5·89	5·93	30	1·87
Mean.	0·66	17	0·19	1·49	3·30	5·96	5·82	Mean.	2·29
	March	18	0·08	1·47	3·38	5·96	5·74		Decem.
1	0·43	19	0·08	1·50	3·43	5·96	5·56	1	1·87
5	0·39	20	0·14	1·55	3·50	6·10	5·40	5	1·83
10	0·28	21	0·19	1·63	3·50	6·05	5·18	10	1·75
15	0·20	22	0·22	1·80	3·57	5·98	5·18	15	1·58
20	0·15	23	0·12	2·05	3·54	6·01	5·10	20	1·50
25	0·09	24	0·15	2·26	3·54	6·05	5·00	25	1·35
30	0·08	25	0·20	2·20	3·58	5·97	4·89	30	1·16
Mean.	0·22	26	0·18	2·00	3·74	5·80	4·84	Mean.	1·56
	April	27	0·25	1·95	4·10	5·68	4·78
1	0·06	28	0·27	1·98	4·28	5·68	4·70
5	0·05	29	0·34	1·98	4·65	5·85	4·58
10	-0·05	30	0·45	2·10	4·83	5·89	4·49
15	-0·07	31	0·45	..	4·85	6·03	..
20	0·11	Mean.	0·30	1·38	3·32	5·63	5·57
25	0·27
30	..
Mean.	0·09
1902
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sept.	Date.	Month.
	January.								October.
1	1·13	1	0·05	0·10	1·80	3·34	5·20	1	5·14
5	1·03	2	0·05	0·23	1·87	3·52	5·20	5	4·88
10	0·84	3	0·04	0·41	1·79	3·62	5·23	10	4·45
15	0·73	4	0·01	0·55	1·75	3·71	5·27	15	3·86
20	0·63	5	0·02	0·74	1·70	3·79	5·27	20	3·63
25	0·54	6	-0·10	0·76	1·76	3·94	5·27	25	3·35
30	0·50	7	-0·08	0·78	1·85	4·00	5·28	30	3·05
Mean.	0·75	8	-0·05	0·76	2·03	4·20	5·33	Mean.	3·97
	February.	9	-0·05	0·75	2·13	4·30	5·40		Novemb.
1	0·48	10	-0·06	0·77	2·16	4·38	5·40	1	3·00
5	0·45	11	-0·07	0·84	2·07	4·40	5·36	5	2·84
10	0·38	12	-0·04	1·00	2·09	4·50	5·35	10	2·60
15	0·33	13	-0·04	0·84	2·05	4·48	5·38	15	2·44
20	0·25	14	-0·01	0·78	2·14	4·50	5·50	20	2·24
25	0·19	15	0·01	0·75	2·17	4·50	5·42	25	2·18
28	0·15	16	0·04	0·72	2·24	4·48	5·40	30	2·08
Mean.	0·32	17	0·03	0·69	2·29	4·45	5·40	Mean.	2·46
	March.	18	0·08	0·74	2·33	4·39	5·40		Decemb.
1	0·14	19	0·18	0·84	2·34	4·50	5·30	1	2·06
5	0·10	20	0·14	1·06	2·36	4·61	5·39	5	1·94
10	0·09	21	0·14	1·24	2·52	4·87	5·30	10	1·83
15	0·07	22	0·16	1·36	2·54	4·93	5·24	15	1·71
20	0·15	23	0·16	1·27	2·56	4·93	5·12	20	1·62
25	0·19	24	0·09	1·29	2·62	4·90	5·10	25	1·55
30	0·07	25	0·10	1·21	2·64	4·90	5·10	30	1·43
Mean.	0·11	26	0·11	1·15	2·69	5·00	5·10	Mean.	1·71
	April.	27	0·16	1·30	2·69	5·17	5·05
1	0·07	28	0·14	1·59	2·79	5·30	5·03
5	-0·02	29	0·09	1·75	2·94	5·34	5·06
10	0·01	30	0·10	1·73	2·96	5·30	5·16
15	-0·07	31	0·11	..	3·24	5·30	..
20	-0·01	Mean.	0·05	0·90	2·30	4·50	5·26
25	-0·04
30	0·01
Mean.	-0·01
1903
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sept.	Date.	Month.
	January.								October.
1	1·40	1	-0·16	1·05	1·54	3·50	6·24	1	5·50
5	1·30	2	-0·20	1·05	1·60	3·80	6·30	5	5·40
10	1·21	3	-0·23	0·98	1·78	4·05	6·15	10	5·15
15	1·10	4	-0·26	0·98	1·95	4·40	6·20	15	4·50
20	1·02	5	-0·26	1·16	2·13	4·60	6·20	20	4·48
25	0·87	6	-0·23	1·40	2·10	4·75	6·15	25	4·40
30	0·73	7	-0·23	1·40	2·10	4·87	6·12	30	4·00
Mean.	1·07	8	-0·23	1·36	2·20	4·95	6·15	Mean.	4·74
	February.	9	-0·22	1·30	2·35	5·06	6·24		Novem.
1	0·65	10	-0·24	1·25	2·48	5·06	6·14	1	3·85
5	0·61	11	-0·28	1·25	2·55	5·10	6·15	5	3·60
10	0·47	12	-0·24	1·30	2·58	5·35	6·05	10	3·25
15	0·42	13	-0·26	1·41	2·75	5·55	5·96	15	3·00
20	0·39	14	-0·25	1·56	2·80	5·65	5·90	20	2·65
25	0·25	15	-0·26	1·65	2·80	5·55	5·86	25	2·60
28	0·22	16	-0·26	1·75	2·75	5·70	5·95	30	2·45
Mean.	0·43	17	-0·23	1·85	2·75	5·80	5·88	Mean.	3·01
	March.	18	-0·21	2·00	2·75	5·70	5·88		Decem.
1	0·22	19	-0·19	1·90	2·85	5·80	5·85	1	2·40
5	0·19	20	-0·18	1·85	2·95	5·80	5·90	5	2·30
10	0·13	21	-0·14	1·70	3·05	5·90	5·95	10	2·09
15	0·08	22	-0·09	1·60	3·25	5·95	6·00	15	1·93
20	0·04	23	-0·02	1·55	3·40	6·00	6·10	20	1·90
25	-0·05	24	0·12	1·55	3·40	6·00	6·10	25	1·88
30	-0·11	25	0·26	1·56	3·40	6·03	6·08	30	1·80
Mean.	0·06	26	0·33	1·58	3·42	6·08	6·02	Mean.	2·01
	April.	27	0·40	1·60	3·42	6·00	5·85
1	-0·11	28	0·53	1·61	3·42	..	5·80
5	-0·13	29	0·90	1·54	3·45	..	5·60
10	-0·10	30	0·98	1·54	3·45	6·15	5·55
15	-0·14	31	1·01	..	3·45	6·28	..
20	-0·12	Mean.	-0·01	1·47	2·73	5·36	6·01
25	-0·16
30	-0·18
Mean.	-0·13
1904
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sept.	Date.	Month.
	January.
1	1·80	1	0·15	0·61	1·35	5·00	5·48	..	..
5	1·78	2	0·15	0·60	1·55	5·30	5·58	..	..
10	1·70	3	0·15	0·60	1·79	5·50	5·58	..	..
15	1·59	4	0·10	0·63	2·15	5·50	5·54	..	..
20	1·55	5	0·10	0·70	2·40	5·55	5·54	..	..
25	1·50	6	0·12	0·92	2·68	5·60	5·50	..	..
30	1·50	7	0·29	1·17	2·76	5·58	5·50	..	..
Mean.	1·59	8	0·10	1·23	2·76	5·58	5·46	..	..
	February.	9	0·00	1·22	2·74	5·58	5·36	..	..
1	1·48	10	-0·01	1·20	2·76	5·58	5·34	..	..
5	1·47	11	+0·05	1·17	2·70	5·64	5·34	..	..
10	1·35	12	0·08	1·16	2·84	5·55	5·34	..	..
15	1·15	13	0·08	1·15	3·05	5·48	5·34	..	..
20	1·13	14	0·08	1·15	3·07	5·48	5·40	..	..
25	1·08	15	0·10	1·16	3·15	5·44	5·40	..	..
28	1·07	16	0·10	1·16	3·40	5·30	..	..	..
Mean.	1·23	17	0·24	1·16	3·62	5·20	..	..	..
	March	18	0·29	1·02	3·63	5·30	..	..	..
1	1·05	19	0·31	0·96	3·63	5·30	..	..	..
5	0·80	20	0·21	1·00	3·63	5·22	..	..	..
10	0·53	21	0·19	1·00	3·65	5·25	..	..	..
15	0·37	22	0·21	1·03	3·75	5·25	..	..	..
20	0·31	23	0·24	1·02	3·95	5·30	..	..	..
25	0·25	24	0·25	1·06	4·00	5·30	..	..	..
30	0·31	25	0·30	1·07	4·02	5·30	..	..	..
Mean.	0·48	26	0·32	1·07	4·15	5·45	..	..	..
	April	27	0·40	1·06	4·38	5·45	..
1	0·10	28	0·48	1·08	4·45	5·62	..
5	0·29	29	0·57	1·16	4·45	5·48	..
10	0·25	30	0·61	1·20	4·45	5·43	..
15	0·18	31	0·60		4·75	5·45	..
20	0·20	Mean.	0·22	1·02		5·41	..
25	0·18
30	0·15
Mean.	0·21

Table LXIII.—River Atbara gauges at Khasm el Girba.

1903
Date.	Jan.	Feb.	Mar.	Apr.	May.	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.
1	..	..	..	..	..	1·00	2·20	4·21	4·52	2·88	..	..
2	..	..	..	..	..	0·93	2·18	4·00	4·52	2·78	..	..
3	..	..	..	..	..	0·85	2·15	3·56	4·60	2·78	..	..
4	..	..	..	..	..	0·85	2·74	3·25	4·70	2·90	..	..
5	..	..	..	..	..	0·89	2·60	3·35	4·55	2·75	..	..
6	..	..	..	..	..	0·89	2·30	3·27	4·66	2·67	..	..
7	..	..	..	..	..	0·86	2·10	3·30	4·58	2·50	..	..
8	..	..	..	..	..	0·97	2·10	3·07	4·50	2·50	..	..
9	..	..	..	..	..	1·05	2·51	3·29	4·15	2·38	..	..
10	..	..	..	..	..	1·11	2·35	3·72	4·30	2·30	..	..
11	..	..	..	..	..	1·00	2·65	4·61	3·89	2·22	..	..
12	..	..	..	..	..	0·97	2·31	4·37	3·95	2·17	..	..
13	..	..	..	..	..	0·90	2·10	4·53	3·80	2·17	..	..
14	..	..	..	..	..	0·90	2·10	4·60	3·84	2·08	..	..
15	..	..	..	..	..	0·93	2·65	4·85	3·71	2·05	..	..
16	..	..	..	..	..	0·98	2·28	4·80	3·88	2·10	..	..
17	..	..	..	..	..	1·20	2·40	4·90	4·36	2·10	..	..
18	..	..	..	..	..	1·50	2·37	5·50	4·20	..	..	..
19	..	..	..	..	..	1·70	2·55	5·50	4·00	2·05	..	..
20	..	..	..	..	..	1·98	2·74	5·75	4·12	..	..	..
21	..	..	..	..	..	1·88	2·83	5·47	3·80	..	..	..
22	..	..	..	..	..	1·70	2·70	5·12	3·45	..	..	..
23	..	..	..	..	..	1·90	2·70	4·82	3·30	..	..	..
24	..	..	..	..	..	1·84	3·00	4·54	3·25	..	..	..
25	..	..	..	..	..	2·20	2·62	4·35	3·10	..	..	..
26	..	..	..	..	..	1·93	2·53	4·20	2·89	..	..	..
27	..	..	..	..	..	2·24	2·60	4·80	3·42	..	..	..
28	..	..	..	..	..	2·20	2·76	4·55	3·10	..	..	..
29	..	..	..	..	..	2·43	2·80	4·55	3·13	..	..	..
30	..	..	..	..	..	2·20	3·29	4·75	3·05	..	..	..
31	..	..	..	..	..	..	3·54	4·45	..	..	..	..
1904
1	..	..	..	..	..	-1·00	1·57	3·79	2·70	..	..	..
2	..	..	..	..	..	-1·00	1·89	3·85	2·65	..	..	..
3	..	..	..	..	..	-0·80	1·80	3·93	2·55	..	..	..
4	..	..	..	..	..	-0·56	1·93	3·90	2·90	..	..	..
5	..	..	..	..	..	-0·10	2·04	4·04	3·50	..	..	..
6	..	..	..	..	..	+0·19	2·08	4·08	3·40	..	..	..
7	..	..	..	..	..	0·31	2·45	4·00	3·30	..	..	..
8	..	..	..	..	..	0·50	2·72	4·00	2·92	..	..	..
9	..	..	..	..	..	0·40	2·83	3·80	2·86	..	..	..
10	..	..	..	..	..	0·38	2·97	3·20	2·98	..	..	..
11	..	..	..	..	..	0·35	2·88	3·93	2·60	..	..	..
12	..	..	..	..	..	0·30	2·80	2·90	2·52	..	..	..
13	..	..	..	..	..	0·30	2·80	2·71	2·85	..	..	..
14	..	..	..	..	..	0·30	3·10	2·63	2·79	..	..	..
15	..	..	..	..	..	0·29	3·03	2·70	2·09	..	..	..
16	..	..	..	..	..	0·28	2·74	3·39	..	..	..	..
17	..	..	..	..	..	0·32	2·91	3·39	..	..	..	..
18	..	..	..	..	..	0·55	3·36	3·39	..	..	..	..
19	..	..	..	..	..	0·40	3·30	3·28	..	..	..	..
20	..	..	..	..	..	0·80	2·10	3·20	..	..	..	..
21	..	..	..	..	..	0·80	3·12	3·20	..	..	..	..
22	..	..	..	..	..	0·70	3·20	3·18	..	..	..	..
23	..	..	..	..	..	0·85	3·50	2·80	..	..	..	..
24	..	..	..	..	..	0·96	3·72	2·83	..	..	..	..
25	..	..	..	..	..	0·95	3·13	2·90	..	..	..	..
26	..	..	..	..	..	1·15	3·05	2·91	..	..	..	..
27	..	..	..	..	..	1·30	3·36	2·96	..	..	..	..
28	..	..	..	..	..	1·45	3·76	3·30	..	..	..	..
29	..	..	..	..	..	1·51	3·69	3·50	..	..	..	..
30	..	..	..	..	..	1·50	4·15	3·10	..	..	..	..
31	..	..	..	..	..	..	3·80	3·08	..	..	..	..
Zero = 10·00 metres on the gauge.

Table LXIV.—Berber gauges.

1901
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sept.	Date.	Month.
	January.								October.
1	2·43	1	0·96	0·97	2·92	6·25	7·80	1	5·93
5	2·35	2	0·98	1·00	2·89	6·30	7·79	5	5·45
10	2·23	3	1·00	1·03	3·00	6·40	7·82	10	5·08
15	2·07	4	1·02	1·05	3·20	6·48	7·75	15	4·73
20	1·93	5	1·04	1·07	3·40	6·56	7·70	20	4·44
25	1·82	6	1·06	1·10	3·55	6·79	7·70	25	4·20
30	1·70	7	1·05	1·18	3·60	6·67	7·62	30	4·00
Mean.	2·06	8	1·05	1·27	3·65	6·79	7·64	Mean.	4·74
	February.	9	1·07	1·36	3·70	6·88	7·45		Novem.
1	1·63	10	1·10	1·43	3·75	7·09	7·50	1	3·90
5	1·62	11	1·09	1·45	3·75	7·45	7·63	5	3·75
10	1·54	12	1·07	1·48	3·78	7·53	7·67	10	3·53
15	1·47	13	1·06	1·47	4·00	7·58	7·57	15	3·38
20	1·38	14	1·05	1·47	4·14	7·70	7·55	20	3·12
25	1·34	15	1·04	1·53	4·20	7·76	7·50	25	2·97
28	1·24	16	1·05	1·70	4·35	7·65	7·41	30	2·83
Mean.	1·47	17	1·04	1·87	4·30	7·68	7·35	Mean.	3·33
	March.	18	1·03	2·00	4·27	7·74	7·25		Decem.
1	1·24	19	1·03	2·15	4·35	7·65	7·20	1	2·86
5	1·24	20	1·00	2·18	4·55	7·54	7·05	5	2·75
10	1·08	21	1·00	2·16	4·59	7·46	6·90	10	2·70
15	0·98	22	0·94	2·14	4·59	7·46	6·80	15	2·52
20	0·94	23	0·86	2·14	4·62	7·43	6·70	20	2·51
25	0·84	24	0·87	2·17	4·62	7·41	6·62	25	2·30
30	0·86	25	0·88	2·27	4·65	7·38	6·51	30	2·13
Mean.	1·01	26	0·91	2·50	4·95	7·50	6·41	Mean.	2·52
	April.	27	0·87	2·70	5·05	7·44	6·27
1	0·83	28	0·85	2·82	5·16	7·44	6·18
5	0·86	29	0·87	2·86	5·58	7·74	6·13
10	0·82	30	0·93	2·88	5·74	7·81	6·08
15	0·63	31	0·95	..	6·15	7·87	..
20	0·72	Mean.	0·99	1·78	4·22	7·27	7·18
25	0·73
30	0·93
Mean.	0·74
1902
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sep- tem- ber.	Date.	Month.
	January.								October.
1	2·04	1	0·67	0·86	2·07	4·32	6·77	1	6·23
5	1·90	2	0·67	0·86	2·27	4·55	6·75	5	6·14
10	1·74	3	0·71	0·86	2·46	4·78	6·70	10	5·73
15	1·51	4	0·71	0·85	2·52	4·90	6·72	15	5·14
20	1·47	5	0·72	0·85	2·58	5·06	6·70	20	4·62
25	1·40	6	0·82	0·91	2·64	5·17	6·72	25	4·28
30	1·30	7	0·78	1·04	2·62	5·17	6·77	30	4·06
Mean.	1·59	8	0·75	1·18	2·64	5·27	6·95	Mean.	5·11
	February.	9	0·70	1·33	2·65	5·37	6·91		Novemb.
1	1·28	10	0·67	1·41	2·72	5·45	6·96	1	3·96
5	1·21	11	0·63	1·44	2·84	5·49	7·05	5	3·65
10	1·12	12	0·63	1·44	2·95	5·55	6·97	10	3·55
15	1·07	13	0·65	1·48	3·04	5·67	6·93	15	3·30
20	1·06	14	0·65	1·52	3·10	5·85	6·91	20	3·11
25	0·96	15	0·65	1·57	3·15	5·85	6·94	25	3·07
28	0·94	16	0·66	1·65	3·15	5·85	6·89	30	2·95
Mean.	1·09	17	0·67	1·64	3·22	5·85	6·84	Mean.	3·34
	March.	18	0·68	1·58	3·21	5·87	6·77		Decemb.
1	0·88	19	0·69	1·50	3·36	5·82	6·75	1	2·94
5	0·82	20	0·73	1·49	3·41	5·89	6·69	5	2·88
10	0·84	21	0·76	1·47	3·48	6·21	6·67	10	2·75
15	0·83	22	0·77	1·47	3·54	6·37	6·63	15	2·68
20	0·76	23	0·82	1·53	3·54	6·42	6·55	20	2·55
25	0·76	24	0·85	1·70	3·59	6·55	6·47	25	2·53
30	0·86	25	0·86	1·90	3·72	6·48	6·37	30	2·37
Mean.	0·81	26	0·86	2·02	3·82	6·50	6·35	Mean.	2·66
	April.	27	0·87	2·06	3·94	6·48	6·38
1	0·83	28	0·87	2·06	..	6·45	6·33
5	0·78	29	0·85	2·10	3·88	6·63	6·29
10	0·64	30	0·86	2·00	4·00	6·80	6·25
15	0·68	31	0·86	..	4·21	6·80	..
20	0·64	Mean.	0·74	1·46	3·14	5·80	6·70
25	0·67
30	0·61
Mean.	0·68
1903
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sep- tem- ber.	Date.	Month.
	January.								October
1	2·36	1	0·83	1·27	2·80	4·83	7·73	1	7·00
5	2·43	2	0·84	1·43	2·82	4·89	7·73	5	6·84
10	2·24	3	0·83	1·63	2·82	4·95	7·72	10	6·58
15	2·15	4	0·82	1·74	2·89	5·65	7·70	15	6·15
20	2·09	5	0·79	1·80	2·93	5·85	7·72	20	5·73
25	1·95	6	0·76	1·84	2·98	5·98	7·77	25	5·86
30	1·80	7	0·75	1·85	3·10	6·18	7·82	30	5·33
Mean.	2·13	8	0·73	1·86	3·25	6·27	7·74	Mean.	6·16
	February.	9	0·72	1·96	3·40	6·37	7·72		Novemb.
1	1·70	10	0·76	2·10	3·47	6·43	7·72	1	5·17
5	1·59	11	0·79	2·16	3·43	6·47	7·72	5	4·96
10	1·51	12	0·80	2·18	3·46	6·50	7·53	10	4·53
15	1·42	13	0·80	2·16	3·56	6·87	7·64	15	4·12
20	1·38	14	0·79	2·13	3·74	7·13	7·52	20	3·88
25	1·23	15	0·77	2·15	3·82	7·20	7·45	25	3·75
28	1·20	16	0·76	2·21	3·95	7·40	7·40	30	..
Mean.	1·44	17	0·76	2·27	4·00	7·53	7·40	Mean.	4·28
	March.	18	0·76	2·37	4·02	7·53	7·37		Decemb.
1	1·20	19	0·77	2·50	4·00	7·67	7·35	1	3·52
5	1·26	20	0·78	2·60	4·10	7·75	7·45	5	3·38
10	1·16	21	0·80	2·72	4·10	8·05	7·45	10	3·28
15	1·10	22	0·80	2·76	4·13	8·10	7·45	15	3·19
20	1·07	23	0·81	2·76	4·23	7·80	7·47	20	3·10
25	1·01	24	0·82	2·70	4·37	7·57	7·47	25	3·05
30	0·92	25	0·83	2·65	4·50	7·60	7·43	30	2·92
Mean.	1·10	26	0·86	2·68	4·67	7·52	7·43	Mean.	3·22
	April.	27	0·91	2·70	4·73	7·62	7·40
1	0·92	28	0·96	2·70	4·83	7·67	7·30
5	0·95	29	1·03	2·70	4·85	7·56	7·14
10	0·90	30	1·09	2·74	4·80	7·72	7·04
15	0·85	31	1·17	..	4·79	7·74	..
20	0·82	Mean.	0·82	2·24	3·82	6·91	7·52
25	0·80
30	0·81
Mean.	0·86
1904
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sep- tem- ber.	Date.	Month.
	January.
1	2·90	1	1·11	1·33	1·95	6·22	6·75
5	2·86	2	1·09	1·42	1·98	6·28	6·67
10	2·75	3	1·07	1·47	2·14	6·34	6·67
15	2·68	4	1·07	1·47	2·32	6·59	6·68
20	2·59	5	1·07	1·45	2·43	6·90	6·69
25	2·52	6	1·06	1·45	2·59	6·93	6·93
30	2·46	7	1·07	1·45	2·80	6·97	6·98
Mean.	2·66	8	1·07	1·46	3·07	6·87	6·85
	February.	9	1·09	1·52	3·40	6·87	6·89
1	2·50	10	1·11	1·75	3·70	6·77	6·83
5	2·35	11	1·15	1·88	3·81	6·70	6·73
10	2·34	12	1·10	1·97	4·00	6·68	6·68
15	2·14	13	1·00	2·00	3·96	6·65	6·68
20	2·00	14	1·00	2·00	3·94	6·64	6·68
25	1·94	15	0·94	1·97	3·94	6·66	6·67
29	1·74	16	0·96	1·97	4·15	6·60
Mean.	2·14	17	0·96	1·98	4·35	6·54
	March.	18	0·98	2·00	4·60	6·52
1	1·67	19	0·98	2·00	4·78	6·60
5	1·65	20	1·02	2·00	4·84	6·47
10	1·52	21	1·09	2·00	5·03	6·46
15	1·37	22	1·15	1·90	5·12	6·50
20	1·29	23	1·17	1·85	5·00	6·45
25	1·22	24	1·15	1·88	5·00	6·50
30	1·17	25	1·09	1·89	5·08	6·57
Mean.	1·39	26	1·08	1·90	5·41	6·48
	April.	27	1·08	1·91	5·65	6·48
1	1·25	28	1·10	1·92	5·60	6·45
5	1·15	29	1·13	1·93	5·57	6·69
10	1·17	30	1·19	1·93	5·78	6·83
15	1·11	31	1·28	..	6·00	6·79
20	1·05	Mean.	1·08	1·79	4·13	6·61
25	1·12
30	1·10
Mean.	1·14

Table LXV.—Mean gauges of 30 years at Assuân.

1873-1902
Date.	Jan.	Feb.	Mar.	Apr.	May.	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.
1	2·64	1·95	1·31	0·68	0·24	0·10	1·04	4·87	7·80	7·19	5·00	3·42
2	2·61	1·93	1·29	0·65	0·24	0·11	1·08	5·01	7·82	7·10	4·90	3·39
3	2·59	1·91	1·27	0·64	0·22	0·12	1·16	5·15	7·81	7·05	4·84	3·37
4	2·57	1·89	1·25	0·63	0·21	0·12	1·21	5·25	7·82	6·96	4·79	3·32
5	2·55	1·87	1·23	0·61	0·20	0·10	1·27	5·51	7·84	6·91	4·72	3·30
6	2·53	1·84	1·21	0·58	0·18	0·12	1·34	5·71	7·82	6·85	4·66	3·26
7	2·51	1·82	1·18	0·56	0·17	0·13	1·41	5·94	7·82	6·77	4·54	3·24
8	2·47	1·81	1·17	0·56	0·16	0·15	1·49	6·15	7·81	6·71	4·47	3·20
9	2·46	1·78	1·15	0·54	0·14	0·17	1·57	6·38	7·81	6·66	4·37	3·19
10	2·44	1·76	1·13	0·52	0·13	0·19	1·65	6·52	7·80	6·59	4·35	3·16
11	2·41	1·73	1·11	0·51	0·13	0·19	1·74	6·62	7·80	6·53	4·28	3·13
12	2·39	1·71	1·08	0·49	0·13	0·22	1·81	6·70	7·83	6·47	4·22	3·10
13	2·37	1·69	1·07	0·47	0·13	0·24	1·90	6·78	7·77	6·40	4·17	3·07
14	2·34	1·66	1·05	0·46	0·13	0·27	1·97	6·92	7·76	6·33	4·10	3·03
15	2·32	1·63	1·02	0·45	0·13	0·29	2·10	6·96	7·76	6·25	4·05	3·01
16	2·30	1·61	1·00	0·44	0·12	0·32	2·23	7·04	7·74	6·17	4·00	2·99
17	2·28	1·59	0·98	0·42	0·12	0·34	2·36	7·11	7·71	6·07	3·96	2·95
18	2·25	1·56	0·96	0·41	0·12	0·37	2·52	7·17	7·68	6·02	3·91	2·94
19	2·22	1·54	0·93	0·40	0·11	0·39	2·65	7·27	7·69	5·98	3·86	2·91
20	2·21	1·52	0·92	0·39	0·11	0·41	2·79	7·31	7·67	5·90	3·82	2·88
21	2·18	1·50	0·90	0·38	0·10	0·43	2·95	7·32	7·67	5·84	3·81	2·85
22	2·16	1·47	0·88	0·36	0·10	0·47	3·11	7·35	7·63	5·78	3·75	2·82
23	2·13	1·45	0·86	0·35	0·08	0·50	3·29	7·48	7·60	5·68	3·70	2·79
24	2·13	1·45	0·83	0·34	0·08	0·56	3·46	7·55	7·56	5·61	3·63	2·77
25	2·10	1·42	0·82	0·33	0·08	0·67	3·58	7·58	7·52	5·53	3·64	2·76
26	2·08	1·39	0·79	0·31	0·08	0·71	3·73	7·60	7·53	5·45	3·61	2·73
27	2·05	1·38	0·77	0·29	0·08	0·79	3·94	7·66	7·43	5·37	3·57	2·68
28	2·04	1·35	0·75	0·27	0·08	0·83	4·16	7·66	7·37	5·30	3·54	2·65
29	2·02		0·73	0·26	0·08	0·98	4·36	7·69	7·31	5·22	3·49	2·62
30	1·99		0·71	0·24	0·08	0·97	4·58	7·74	7·25	5·15	3·42	2·60
31	1·96		0·69		0·09		4·73	7·78		5·07		2·58
Zero is R. L. 85·00 metres.

Table LXV. (continued).—Assuân Gauges.

1874
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sept.	Date.	Month.
	January.								October.
1	2·06	1	-0·41	-0·32	1·50	6·49	8·70	1	8·11
5	1·95	2	-0·37	-0·10	1·57	6·65	8·72	5	7·89
10	1·75	3	-0·37	0·10	1·61	6·74	8·83	10	7·64
15	1·57	4	-0·37	0·26	1·68	6·81	8·90	15	7·21
20	1·41	5	-0·39	0·31	1·72	6·88	8·95	20	6·61
25	1·23	6	-0·44	0·46	1·81	6·97	8·97	25	6·16
30	1·00	7	-0·48	0·58	1·93	6·97	8·95	30	5·68
Mean.	1·53	8	-0·50	0·71	1·99	6·97	8·92	Mean.	7·04
	February.	9	-0·50	0·82	2·08	7·06	8·88		Nov.
1	0·94	10	-0·53	0·87	2·15	7·35	8·83	1	5·48
5	0·80	11	-0·53	0·87	2·24	7·75	8·81	5	5·19
10	0·67	12	-0·53	0·84	2·38	8·16	8·77	10	4·87
15	0·58	13	-0·53	0·82	2·49	8·36	8·74	15	4·58
20	0·44	14	-0·55	0·78	2·52	8·45	8·74	20	4·31
25	0·35	15	-0·55	0·71	2·71	8·47	8·74	25	4·17
28	0·31	16	-0·57	0·67	2·83	8·43	8·70	30	4·00
Mean.	0·58	17	-0·57	0·67	2·98	8·36	8·63	Mean.	4·65
	March.	18	-0·57	0·64	3·16	8·43	8·56		Dec.
1	0·28	19	-0·59	0·64	3·25	8·50	8·47	1	3·95
5	0·26	20	-0·59	0·64	3·37	8·36	8·43	5	3·73
10	0·19	21	-0·61	0·67	3·43	8·61	8·41	10	3·57
15	0·13	22	-0·64	0·73	3·66	8·68	8·45	15	3·41
20	0·04	23	-0·64	0·82	4·02	8·63	8·45	20	3·28
25	-0·01	24	-0·64	0·94	4·47	8·65	8·43	25	3·16
30	-0·08	25	-0·64	1·12	4·87	8·68	8·38	30	3·03
Mean.	0·11	26	-0·66	1·30	5·21	8·74	8·34	Mean.	3·45
	April.	27	-0·66	1·41	5·46	8·77	8·32
1	-0·12	28	-0·66	1·45	5·77	8·74	8·27
5	-0·26	29	-0·66	1·47	6·07	8·74	8·20
10	-0·30	30	-0·61	1·47	6·20	8·70	8·16
15	-0·32	31	-0·50	..	6·31	8·68	..
20	-0·39	Mean.	-0·54	0·74	3·27	8·00	8·62
25	-0·46
30	-0·46
Mean.	-0·34
Zero is R. L. 85·00 metres.
1877
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sept.	Date.	Month.
	January.								October.
1	2·62	1	0·35	0·19	1·30	4·72	6·18	1	6·04
5	2·54	2	0·37	0·22	1·48	4·74	6·20	5	5·64
10	2·42	3	0·37	0·24	1·63	4·74	6·25	10	5·21
15	2·26	4	0·35	0·26	1·75	4·74	6·27	15	4·92
20	2·13	5	0·35	0·28	1·81	4·88	6·27	20	4·63
25	1·99	6	0·33	0·31	1·86	4·85	6·27	25	4·53
30	1·81	7	0·33	0·31	1·90	5·03	6·22	30	4·09
Mean.	2·25	8	0·35	0·33	1·97	5·26	6·18	Mean.	5·01
	February.	9	0·40	0·37	2·04	5·39	6·11		Novemb.
1	1·77	10	0·42	0·46	2·13	5·35	6·09	1	3·88
5	1·70	11	0·42	0·55	2·26	5·37	6·13	5	3·73
10	1·57	12	0·40	0·69	2·44	5·37	6·16	10	3·61
15	1·39	13	0·37	0·80	2·71	5·41	6·13	15	3·41
20	1·25	14	0·33	0·87	3·01	5·55	6·07	20	3·23
25	1·17	15	0·28	0·91	3·23	5·75	6·02	25	2·94
28	1·17	16	0·26	0·96	3·32	6·07	6·00	30	2·67
Mean.	1·43	17	0·24	1·03	3·32	6·18	6·02	Mean.	3·35
	March.	18	0·22	1·07	3·28	6·22	6·04		Decemb.
1	1·14	19	0·17	1·09	3·21	6·34	6·00	1	2·60
5	1·09	20	0·17	1·09	3·23	6·40	5·95	5	2·51
10	0·96	21	0·15	1·09	3·32	6·29	6·02	10	2·40
15	0·78	22	0·15	1·07	3·46	6·18	6·11	15	2·22
20	0·69	23	0·15	1·07	3·57	6·13	6·25	20	2·13
25	0·58	24	0·15	1·07	3·64	6·13	6·27	25	1·95
30	0·49	25	0·13	1·07	3·70	6·13	6·27	30	1·97
Mean.	0·82	26	0·10	1·05	3·72	6·11	6·20	Mean.	2·25
	April.	27	0·10	1·05	3·99	6·13	6·11
1	0·46	28	0·13	1·07	4·21	6·18	6·11
5	0·40	29	0·15	1·09	4·54	6·18	6·13
10	0·33	30	0·17	1·16	4·65	6·18	6·09
15	0·31	31	0·19	..	4·67	6·16	..
20	0·42	Mean.	0·26	0·74	2·94	5·68	6·13
25	0·51
30	0·35
Mean.	0·40
Zero is R. L. 85·00 metres.
1878
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sept.	Date.	Month.
	January.								October.
1	1·97	1	-0·41	-0·66	0·67	5·39	7·60	1	9·15
5	1·88	2	-0·44	-0·66	0·71	5·46	7·73	5	8·92
10	1·75	3	-0·46	-0·66	0·78	5·48	7·89	10	8·47
15	1·61	4	-0·48	-0·66	0·87	5·55	8·02	15	7·91
20	1·48	5	-0·48	-0·68	0·91	5·62	8·14	20	7·60
25	1·39	6	-0·46	-0·68	0·96	5·62	8·23	25	7·42
30	1·23	7	-0·46	-0·71	1·00	5·53	8·32	30	6·83
Mean.	1·62	8	-0·48	-0·71	1·03	5·41	8·38	Mean.	8·05
	February.	9	-0·50	-0·71	1·03	5·68	8·47		Novem.
1	1·21	10	-0·50	-0·68	1·05	6·25	8·52	1	6·72
5	1·07	11	-0·50	-0·66	1·07	6·31	8·56	5	6·34
10	0·91	12	-0·50	-0·66	1·12	6·72	8·70	10	5·86
15	0·80	13	-0·48	-0·66	1·18	6·88	8·81	15	5·50
20	0·67	14	-0·48	-0·66	1·27	7·06	8·86	20	5·17
25	0·51	15	-0·50	-0·66	1·44	7·17	8·90	25	4·92
28	0·46	16	-0·50	-0·64	1·70	7·17	8·86	30	4·69
Mean.	0·80	17	-0·50	-0·61	1·97	7·10	8·83	Mean.	5·60
	March	18	-0·53	-0·59	2·17	7·12	8·83		Decem.
1	0·44	19	-0·55	-0·59	2·33	7·26	8·81	1	4·67
5	0·33	20	-0·57	-0·59	2·47	7·48	8·86	5	4·57
10	0·24	21	-0·57	-0·61	2·76	7·73	8·86	10	4·38
15	0·17	22	-0·57	-0·61	2·98	7·89	8·81	15	4·20
20	0·08	23	-0·59	-0·59	3·33	7·96	8·86	20	4·09
25	-0·03	24	-0·61	-0·50	3·48	8·02	8·92	25	3·93
30	-0·05	25	-0·64	-0·32	3·82	8·07	8·99	30	3·77
Mean.	0·17	26	-0·64	-0·05	4·22	8·09	8·97	Mean.	4·23
	April.	27	-0·64	0·19	4·45	7·91	8·92
1	-0·10	28	-0·66	0·40	4·63	7·69	9·01
5	-0·12	29	-0·68	0·58	4·78	7·57	9·08
10	-0·19	30	-0·68	0·64	4·96	7·53	9·13
15	-0·26	31	-0·68	..	5·21	7·55	..
20	-0·26	Mean.	-0·56	-0·47	2·27	6·85	8·63
25	-0·37
30	-0·41
Mean.	-0·25
Zero is R. L. 85·00 metres.
1901
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sept.	Date.	Month.
	January.								October.
1	1·97	1	-0·37	-0·08	0·37	3·89	7·42	1	6·56
5	1·93	2	-0·39	-0·08	0·49	3·95	7·38	5	6·09
10	1·79	3	-0·41	-0·10	0·67	4·02	7·44	10	5·59
15	1·66	4	-0·44	-0·10	0·82	4·13	7·62	15	5·06
20	1·57	5	-0·44	-0·10	0·96	4·32	7·76	20	4·67
25	1·48	6	-0·46	-0·12	1·05	4·67	7·82	25	4·31
30	1·25	7	-0·46	-0·12	1·09	5·28	7·82	30	4·15
Mean.	1·66	8	-0·46	-0·14	1·15	5·82	7·76	Mean.	5·20
	February.	9	-0·46	-0·19	1·23	6·09	7·73		Nov.
1	1·21	10	-0·46	-0·21	1·39	6·23	7·71	1	3·95
5	1·07	11	-0·44	-0·21	1·57	6·36	7·69	5	3·75
10	0·96	12	-0·44	-0·23	1·70	6·52	7·69	10	3·55
15	0·87	13	-0·41	-0·26	1·81	6·61	7·67	15	3·32
20	0·71	14	-0·39	-0·26	1·90	6·68	7·64	20	3·07
25	0·67	15	-0·35	-0·26	1·95	6·77	7·55	25	2·89
28	0·58	16	-0·30	-0·26	2·05	6·97	7·48	30	2·67
Mean.	0·87	17	-0·26	-0·23	2·24	7·31	7·55	Mean.	3·31
	March.	18	-0·23	-0·21	2·56	7·58	7·60		Dec.
1	0·55	19	-0·21	-0·19	2·67	7·69	7·62	1	2·65
5	0·49	20	-0·19	-0·17	2·78	7·80	7·55	5	2·51
10	0·40	21	-0·14	-0·14	2·83	7·80	7·51	10	2·35
15	0·27	22	-0·12	-0·10	2·89	7·78	7·46	15	2·26
20	0·17	23	-0·12	-0·05	3·01	7·75	7·37	20	2·17
25	0·08	24	-0·10	-0·03	3·07	7·73	7·25	25	2·08
30	-0·03	25	-0·08	-0·01	3·26	7·62	7·22	30	1·90
Mean.	0·27	26	-0·08	0·06	3·48	7·53	7·10	Mean.	2·27
	April.	27	-0·05	0·10	3·61	7·49	6·99
1	-0·07	28	-0·03	0·22	3·66	7·44	6·63
5	-0·10	29	-0·01	0·31	3·68	7·39	6·70
10	-0·17	30	-0·03	0·35	3·73	7·35	6·61
15	-0·24	31	-0·08	..	3·80	7·42	..
20	-0·26	Mean.	-0·27	-0·09	2·18	6·51	7·44
25	-0·28
30	-0·32
Mean.	-0·20
Zero is R. L. 85·00 metres.
1902
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sept.	Date.	Month.
	January.								October.
1	1·86	1	-0·39	-0·46	0·42	2·56	6·16	1	6·20
5	1·79	2	-0·39	-0·48	0·49	2·65	6·13	5	6·00
10	1·61	3	-0·39	-0·50	0·49	2·69	6·09	10	5·89
15	1·41	4	-0·37	-0·53	0·49	2·76	6·09	15	5·64
20	1·21	5	-0·39	-0·55	0·49	2·83	6·20	20	5·30
25	0·98	6	-0·41	-0·57	0·46	2·92	6·38	25	4·67
30	0·85	7	-0·41	-0·52	0·46	3·03	6·45	30	4·09
Mean.	1·38	8	-0·43	-0·52	0·49	3·10	6·45	Mean.	5·40
	February.	9	-0·46	-0·50	0·56	3·16	6·40		Nov.
1	0·78	10	-0·46	-0·46	0·65	3·25	6·36	1	3·97
5	0·67	11	-0·46	-0·37	0·83	3·41	6·31	5	3·77
10	0·62	12	-0·48	-0·35	0·87	3·66	6·36	10	3·37
15	0·49	13	-0·48	-0·30	0·94	4·00	6·37	15	3·10
20	0·42	14	-0·48	-0·30	0·96	4·29	6·47	20	2·85
25	0·33	15	-0·46	-0·26	1·01	4·42	6·58	25	2·60
28	0·26	16	-0·43	-0·30	1·07	4·56	6·65	30	2·30
Mean.	0·51	17	-0·41	-0·23	1·23	4·67	6·72	Mean.	3·15
	March.	18	-0·39	-0·21	1·39	4·78	6·72		Dec.
1	0·22	19	-0·39	-0·28	1·54	4·87	6·65	1	2·33
5	0·15	20	-0·39	-0·30	1·61	4·94	6·58	5	2·31
10	0·10	21	-0·41	-0·32	1·66	5·08	6·58	10	2·15
15	0·01	22	-0·39	-0·32	1·70	5·28	6·61	15	2·04
20	-0·08	23	-0·37	-0·30	1·77	5·39	6·58	20	1·81
25	-0·17	24	-0·39	-0·23	1·87	5·42	6·52	25	1·79
30	-0·21	25	-0·39	-O·16	1·97	5·37	6·47	30	1·55
Mean.	0·00	26	-0·39	-0·05	2·08	5·32	6·43	Mean.	2·00
	April.	27	-0·41	0·11	2·20	5·32	6·36
1	-0·21	28	-0·43	0·20	2·29	5·44	6·31
5	-0·23	29	-0·43	0·24	2·38	5·71	6·27
10	-0·30	30	-O·46	0·33	2·45	5·96	6·23
15	-0·26	31	-0·46	..	2·54	6·11	..
20	-0·23	Mean.	-0·42	-0·28	1·27	4·29	6·41
25	-0·30
30	-0·39
Mean.	-0·27
Zero is R. L. 85·00 metres.
1903
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sept.	Date.	Month.
	January.								October.
1	1·52	1	-0·62	-0·19	1·07	3·14	7·37	1	7·30
5	1·66	2	-0·64	-0·19	1·16	3·21	7·39	5	7·06
10	1·34	3	-0·62	-0·19	1·27	3·32	7·35	10	6·58
15	1·36	4	-0·59	+0-01	1·39	3·52	7·39	15	6·40
20	1·32	5	-0·52	-0·05	1·48	3·77	7·53	20	6·07
25	1·07	6	-0·52	-0·03	1·52	3·95	7·58	25	5·55
30	1·07	7	-0·50	+0·01	1·52	4·11	7·56	30	5·30
Mean.	1·33	8	-0·57	0·01	1·52	4·13	7·62	Mean.	6·32
	February.	9	-0·57	-0·03	1·52	4·11	7·02		Novemb.
1	0·85	10	-0·57	-0·01	1·55	4·09	7·62	1	5·46
5	0·82	11	-0·59	0·01	1·57	4·13	7·68	5	5·15
10	0·73	12	-0·59	0·01	1·59	4·34	7·75	10	4·67
15	0·51	13	-0·59	0·06	1·59	4·90	7·75	15	4·25
20	0·40	14	-0·64	0·08	1·66	5·44	7·73	20	4·06
25	0·28	15	-0·55	0·13	1·68	5·73	7·66	25	3·52
28	0·06	16	-0·55	0·20	1·72	5·91	7·64	30	3·21
Mean.	0·52	17	-0·55	0·20	1·75	6·04	7·62	Mean.	4·33
	March.	18	-0·57	0·74	1·82	6·13	7·58		Decemb.
1	0·06	19	-0·57	0·94	1·91	6·34	7·55	1	3·16
5	0·10	20	-0·55	1·10	2·02	6·65	7·48	5	3·03
10	0·10	21	-0·48	1·12	2·18	7·01	7·42	10	2·71
15	-0·03	22	-0·28	1·23	2·33	7·21	7·35	15	2·51
20	-0·05	23	-0·28	1·34	2·44	7·39	7·35	20	2·33
25	-0·26	24	-0·21	1·14	2·47	7·49	7·28	25	2·31
30	-0·28	25	-0·35	1·12	2·56	7·66	7·33	30	2·15
Mean.	-0·05	26	-0·35	1·27	2·69	7·82	7·35	Mean.	2·60
	April.	27	-0·37	1·30	2·85	7·93	7·35
1	-0·28	28	-0·37	0·92	2·96	7·84	7·33
5	-0·23	29	-0·34	0·92	3·03	7·66	7·35
10	-0·39	30	-0·28	0·98	3·07	7·53	7·33
15	-0·48	31	-0·14	..	3·12	7·46	..
20	-0·39	Mean.	-0·48	0·47	1·97	5·68	7·50
25	-0·59
30	-0·62
Mean.	-0·43
Zero is R. L. 85·00 metres.
1904
Date.	Month.	Date.	May.	June.	July.	Au- gust.	Sept.	Date.	Month.
	January.								October.
1	2·11	1	-0·08	0·26	0·94	4·45	6·34	1	..
5	2·13	2	-0·12	0·28	0·89	4·49	6·34	5	..
10	1·95	3	-0·14	0·28	0·87	4·60	6·27	10	..
15	1·86	4	-0·21	0·28	0·87	4·87	6·27	15	..
20	1·79	5	-0·21	0·28	0·85	5·10	6·47	20	..
25	1·68	6	-0·19	0·33	0·83	5·28	6·61	25	..
30	1·57	7	-0·19	0·60	0·83	5·50	6·63	30	..
Mean.	1·87	8	-0·17	0·65	0·83	5·84	6·58	Mean.	..
	February.	9	-0·14	0·67	0·80	6·11	6·52		Novem.
1	1·57	10	-0·14	0·69	0·78	6·38	6·47	1	..
5	1·52	11	-0·05	0·71	0·78	6·63	6·52	5	..
10	1·43	12	+0·14	0·85	0·78	6·85	6·58	10	..
15	1·36	13	0·04	0·89	0·78	6·97	6·74	15	..
20	1·29	14	0·01	0·94	0·80	6·92	6·88	20	..
25	1·27	15	-0·05	0·92	0·83	6·85	6·83	25	..
28	1·17	16	-0·05	0·96	0·87	6·74	..	30	..
Mean.	1·37	17	-0·05	1·05	0·94	6·65	..	Mean.	..
	March.	18	-0·05	1·14	1·03	6·61	..		Decem.
1	1·03	19	-0·05	1·18	1·28	6·56	..	1	..
5	0·74	20	-0·05	1·23	1·61	6·54	..	5	..
10	0·71	21	0·15	1·21	2·15	6·54	..	10	..
15	0·69	22	0·10	1·21	2·62	6·49	..	15	..
20	0·46	23	0·13	1·18	2·92	6·47	..	20	..
25	0·42	24	0·13	1·21	3·08	6·43	..	25	..
30	0·20	25	0·15	1·16	3·16	6·40	..	30	..
Mean.	0·60	26	0·13	1·14	3·23	6·43	..	Mean.	..
	April.	27	0·10	1·16	3·43	6·36	..
1	0·13	28	0·10	1·21	3·70	6·34	..
5	-0·10	29	0·06	1·12	4·02	6·27	..
10	-0·12	30	0·06	1·07	4·27	6·25	..
15	0·04	31	0·04	..	4·42	6·29	..
20	0·06	Mean.	-0·02	0·86	1·78	6·14	..
25	0·04
30	-0·03
Mean.	0·00
Zero is R. L. 85·00 metres.

Table LXVI.—Assuân Reservoir gauges.

R. L. of Zero 85·00 metres.
Year.	Date.	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.
1902	1	..	..	..	..	..	..	..	..	..	..	12·80	17·77
	5	..	..	..	..	..	..	..	..	..	..	13·72	18·16
	10	..	..	..	..	..	..	..	..	..	..	14·91	18·59
	15	..	..	..	..	..	..	..	..	..	..	15·73	19·02
	20	..	..	..	..	..	..	..	..	..	9·90	16·58	19·39
	25	..	..	..	..	..	..	..	..	..	10·98	17·18	19·77
	30	..	..	..	..	..	..	..	..	..	12·50	17·67	20·25
	Mean	..	..	..	..	..	..	..	..	..	..	15·51	19·00
1903	1	20·30	21·00	21·05	20·67	19·76	17·63	..	..	..	..	..	10·56
	5	20·38	21·13	21·09	20·55	19·63	16·85	..	..	..	..	..	10·53
	10	20·41	21·06	21·00	20·34	19·39	15·69	..	..	..	..	10·63	12·10
	15	20·61	21·03	20·92	20·19	19·18	14·41	..	..	..	..	10·53	13·33
	20	20·67	21·06	20·79	19·99	18·98	12·42	..	..	..	..	6·90	14·49
	25	20·86	21·00	20·75	19·89	18·48	9·43	..	..	..	..	10·59	15·18
	30	20·96	21·03	20·68	19·72	17·97	7·07	..	..	..	..	10·57	16·14
	Mean	20·60	21·04	20·90	20·19	19·05	13·47	..	..	..	..	..	13·19
1904	1	16·29	19·18	20·44	20·91	20·94	19·66	..	..	..	..	..	..
	5	16·80	19·42	20·72	21·00	20·99	19·06	..	..	..	..	..	..
	10	17·37	19·70	21·01	21·15	21·09	17·97	..	..	..	..	..	..
	15	17·81	20·00	20·96	21·25	20·91	16·22	..	..	..	..	..	..
	20	18·26	20·28	21·01	21·16	20·73	13·84	..	..	..	..	..	..
	25	18·66	20·37	20·94	21·06	20·33	10·26	..	..	..	..	..	..
	30	19·13	20·41	20·90	20·96	19·83	6·56	..	..	..	..	..	..
	Mean	17·76	19·91	20·85	21·07	20·69	14·80	..	..	..	..	..	..
Zero is R. L. 85·00 metres.

Table LXVII.—Cairo gauges. (Roda island).

Mean of 20 years 1873-1892.

Year.	Date.	Jan.	Feb.	Mar.	Apr.	May.	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.
	5	2·8	2·2	1·8	1·5	1·1	0·9	1·1	4·1	6·5	6·9	5·6	3·6
	10	2·7	2·2	1·8	1·4	1·1	0·9	1·3	4·9	6·7	6·9	5·1	3·4
	15	2·6	2·1	1·7	1·3	1·1	0·9	1·5	5·7	6·8	6·8	4·7	3·3
	20	2·5	2·0	1·6	1·3	1·1	0·9	1·8	5·9	6·9	6·8	4·3	3·2
	25	2·4	1·9	1·6	1·2	1·0	1·0	2·2	6·2	7·0	6·7	4·0	3·0
	End.	2·3	1·9	1·5	1·2	1·0	1·1	2·9	6·4	7·1	6·2	3·8	2·9
1877	5	2·7	2·2	1·5	1·3	1·1	0·7	1·2	3·6	5·2	5·2	3·9	2·9
	10	2·7	2·1	1·4	1·3	1·0	0·7	1·2	4·0	5·3	5·0	3·6	2·7
	15	2·6	1·9	1·4	1·2	1·0	0·7	1·4	4·7	5·2	4·9	3·7	2·6
	20	2·6	1·8	1·3	1·1	1·0	0·8	1·6	4·6	5·2	4·6	3·7	2·5
	25	2·5	1·7	1·4	1·1	1·0	1·0	2·4	5·3	5·1	4·4	3·5	2·4
	End.	2·3	1·7	1·4	1·0	1·9	1·3	2·8	5·3	5·3	4·2	3·1	2·3
	Mean.	2·6	1·9	1·4	1·2	1·0	0·9	1·8	4·6	5·2	4·7	3·6	2·6
1878	5	2·2	1·6	1·0	0·6	0·3	0·0	-0·2	4·1	6·5	8·4	7·5	4·9
	10	2·1	1·5	0·9	0·6	0·2	0·0	0·4	4·9	6·8	8·7	7·4	4·7
	15	2·1	1·3	0·9	0·5	0·2	0·0	0·8	5·4	7·2	8·4	6·9	4·5
	20	1·9	1·2	1·0	0·5	0·2	-0·2	1·0	6·0	7·6	8·1	6·2	4·4
	25	1·8	1·1	0·8	0·4	0·1	-0·2	1·4	6·3	7·9	7·9	5·5	4·2
	End.	1·7	1·1	0·8	0·3	0·0	-0·2	2·6	6·6	8·2	7·7	5·5	4·0
	Mean.	1·9	1·3	0·9	0·5	0·2	-0·1	1·0	5·5	7·4	8·2	6·5	4·4
1879	5	3·7	3·2	2·7	2·5	2·2	2·0	2·1	5·1	7·1	7·9	5·9	4·4
	10	3·6	3·0	2·7	2·5	2·2	2·1	2·1	5·9	7·0	7·5	5·4	4·0
	15	3·5	2·9	2·6	2·5	2·2	2·3	2·6	6·5	7·2	7·6	5·0	3·8
	20	3·4	2·9	2·6	2·4	2·1	2·2	3·5	6·9	7·7	7·4	4·7	3·7
	25	3·3	2·8	2·5	2·3	2·1	2·2	3·9	7·0	8·0	7·3	4·5	3·5
	End.	3·2	2·8	2·5	2·3	2·0	2·1	4·9	7·1	8·1	6·6	4·3	3·5
	Mean.	3·5	2·9	2·6	2·4	2·1	2·1	3·2	6·4	7·5	7·4	5·0	3·8
Referred to zero as R. L. 12·25.

Table LXVII. (continued).—Cairo gauges (Roda island).

1902
Date.	Month.	Date.	May.	June.	July.	August.	Sept.	Date.	Month.
	January.								October.
1	2·78	1	2·08	1·73	1·79	3·66	4·87	1	5·68
5	2·74	2	2·07	1·75	1·78	3·61	4·92	5	5·60
10	2·68	3	2·02	1·75	1·76	3·64	5·01	10	5·51
15	2·49	4	2·00	1·78	1·75	3·64	5·14	15	5·57
20	2·25	5	2·00	1·80	1·75	3·66	5·23	20	5·66
25	2·16	6	2·00	1·80	1·76	3·66	5·28	25	5·50
30	2·27	7	2·00	1·80	1·79	3·68	5·30	30	5·22
Mean.	2·45	8	1·98	1·82	1·88	3·72	5·30	Mean.	5·53
	February.	9	1·99	1·83	1·98	3·77	5·35		Nov.
1	2·27	10	1·99	1·82	2·07	3·80	5·41	1	5·11
5	2·25	11	1·98	1·80	2·16	3·81	5·49	5	4·96
10	2·20	12	1·98	1·80	2·25	3·84	5·54	10	4·65
15	2·20	13	1·96	1·81	2·32	3·86	5·55	15	4·44
20	2·27	14	1·96	1·80	2·38	3·88	5·53	20	4·38
25	2·22	15	1·94	1·80	2·41	3·90	5·52	25	3·95
28	2·37	16	1·94	1·79	2·47	3·93	5·53	30	3·91
Mean.	2·25	17	1·91	1·78	2·50	3·95	5·55	Mean.	4·49
	March.	18	1·86	1·76	2·52	3·97	5·56		Dec.
1	2·37	19	1·86	1·71	2·56	4·02	5·58	1	3·93
5	2·32	20	1·86	1·68	2·58	4·13	5·64	5	3·70
10	2·30	21	1·86	1·66	2·64	4·26	5·67	10	3·29
15	2·34	22	1·84	1·64	2·70	4·33	5·74	15	3·05
20	2·30	23	1·82	1·66	2·82	4·40	5·77	20	3·05
25	2·29	24	1·82	1·69	2·94	4·47	5·77	25	2·95
30	2·29	25	1·80	1·71	3·05	4·51	5·77	30	2·78
Mean.	2·32	26	1·80	1·76	3·13	4·58	5·71	Mean.	3·25
	April.	27	1·78	1·78	3·23	4·65	5·70
1	2·29	28	1·78	1·80	3·35	4·72	5·69
5	2·27	29	1·77	1·80	3·50	4·79	5·69
10	2·09	30	1·75	1·80	3·54	4·83	5·68
15	2·12	31	1·74	..	3·57	4·85	..
20	2·12	Mean.	1·92	1·76	2·45	4·07	5·44
25	2·07
30	2·08
Mean.	2·15
Zero is R. L. 12·25 metres.
1903
Date.	Month.	Date.	May.	June.	July.	August.	Sept.	Date.	Month.
	January.								October.
1	2·78	1	2·03	1·87	3·25	3·73	6·18	1	6·19
5	2·69	2	2·02	1·93	3·48	3·76	6·11	5	6·34
10	2·64	3	2·00	1·96	3·55	3·76	6·11	10	6·63
15	2·67	4	2·00	1·98	3·54	3·78	6·09	15	6·61
20	2·51	5	1·96	1·98	3·59	3·80	6·06	20	6·72
25	2·43	6	1·93	1·98	3·57	3·84	6·04	25	6·90
30	2·36	7	1·89	1·98	3·54	3·89	6·02	30	5·91
Mean.	2·56	8	1·84	1·99	3·57	3·89	6·05	Mean.	6·47
	February.	9	1·81	2·00	3·54	3·91	6·07		Nov.
1		10	1·79	2·03	3·55	3·92	6·14	1	6·18
5	2·47	11	1·77	2·06	3·57	3·94	6·18	5	6·15
10	2·43	12	1·79	2·06	3·57	4·02	6·21	10	5·90
15	2·38	13	1·79	2·07	3·57	4·06	6·25	15	5·23
20	2·38	14	1·77	2·08	3·59	4·19	5·27	20	4·67
25	2·33	15	1·75	2·10	3·60	4·24	6·29	25	4·50
28	2·30	16	1·79	2·16	3·62	4·33	6·33	30	4·26
Mean.	2·38	17	1·79	2·20	3·64	4·40	6·36	Mean.	5·27
	March.	18	..	2·20	3·66	4·49	6·39		Dec.
1	2·29	19	..	2·25	3·64	4·69	6·41	1	4·22
5	2·24	20	1·75	2·32	3·68	4·89	6·41	5	4·08
10	2·36	21	1·75	2·36	3·64	5·03	6·39	10	3·99
15	2·32	22	1·76	2·39	3·66	5·15	6·36	15	3·50
20	2·33	23	1·77		3·66		6·33	20	3·33
25	2·41	24	1·75	2·45	3·66	5·40	6·28	25	3·01
30	2·42	25	1·78	2·48	3·69	5·55	6·25	30	2·86
Mean.	2·34	26	..	2·50	3·68	5·72	6·20	Mean.	3·57
	April.	27	1·80	2·54	3·69	5·84	6·15
1	2·40	28	1·83	2·61	3·69	5·93	6·11
5	2·38	29	1·85	2·82	3·66	6·05	6·10
10	2·25	30	1·83	3·01	3·70	6·15	6·15
15	2·22	31	1·83	..	3·72	6·18	..
20	2·40	Mean.	1·84	2·25	3·58	4·61	6·22
25	2·20
30	2·04
Mean.	2·27
Zero is R. L. 12·25 metres.
1904
Date.	Month.	Date.	May.	June.	July.	August.	Sept.	Date.	Month.
	January.								October.
1	2·82	1	2·58	2·60	3·59	3·88	5·68	1	..
5	2·69	2	2·58	2·65	3·59	3·93	5·66	5	..
10	2·12	3	2·56	3·05	3·57	4·04	5·64	10	..
15	2·54	4	2·56	2·90	3·56	4·15	5·62	15	..
20	2·47	5	2·57	2·75	3·59	4·26	5·65	20	..
25	2·41	6	2·57	2·80	3·59	4·38	5·65	25	..
30	2·44	7	2·54	2·84	3·59	4·47	5·66	30	..
Mean.	2·50	8	2·56	2·86	3·57	4·56	5·67	Mean.	..
	February.	9	2·54	2·88	3·57	4·65	5·69		Novem.
1	2·50	10	2·54	2·92	3·54	4·76	5·75	1	..
5	2·62	11	2·52	2·97	3·54	4·84	5·79	5	..
10	2·74	12	2·52	3·01	3·54	5·14	5·83	10	..
15	2·70	13	2·54	—	3·55	5·40	5·84	15	..
20	2·66	14	2·56	3·08	3·54	5·62	5·82	20	..
25	2·83	15	2·54	3·09	3·57	5·80	5·80	25	..
28	2·83	16	2·52	3·07	3·54	5·94	5·83	30	..
Mean.	2·70	17	2·50	3·10	3·54	5·95	5·85	Mean.	..
	March.	18	2·54	3·15	3·54	5·97	5·89		Decem.
1	2·73	19	2·54	3·23	3·54	5·97	5·93	1	..
5	2·79	20	2·52	3·35	3·52	5·93	5·92	5	..
10	2·75	21	2·52	3·50	3·52	5·91	5·92	10	..
15	2·70	22	2·52	3·57	3·54	5·86	5·89	15	..
20	2·70	23	2·52	3·59	3·54	5·82	5·86	20	..
25	2·66	24	2·51	3·60	3·54	5·77	5·80	25	..
30	2·60	25	2·52	3·55	3·57	5·75	..	30	..
Mean.	2·70	26	2·56	3·55	3·57	5·74	..	Mean.	..
	April.	27	2·57	3·57	3·57	5·73	..
1	2·61	28	2·58	3·57	3·57	5·70	..
5	2·61	29	2·56	3·58	3·59	5·69	..
10	2·56	30	2·54	3·58	3·73	5·68	..
15	2·60	31	2·56	..	3·88	5·68	..
20	2·38	Mean.	2·55	3·12	3·14	5·15	..
25	2·11
30	2·52
Mean.	2·48
Zero is R. L. 12·25 metres.

Table LXVIII.—Gauges downstream of the Rosetta Weir.

Year.	Date.	Jan.	Feb.	Mar.	Apr.	May.	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.
1902	1	3·57	2·12	1·00	0·00	-0·50	-0·50	0·00	1·10	4·30	5·36	4·54	4·10
	5	3·53	1·95	0·87	-0·48	-0·50	-0·50	0·00	1·94	4·83	5·24	4·27	3·63
	10	3·40	1·77	0·67	-0·45	-0·50	-0·12	0·05	2·00	5·04	5·08	3·85	3·90
	15	3·12	1·54	0·31	-0·48	-0·50	0·00	0·03	2·26	5·16	5·12	3·50	3·95
	20	2·75	1·37	0·60	-0·47	-0·50	-0·02	0·08	2·87	5·28	5·32	3·38	3·99
	25	2·58	1·15	0·33	-0·50	-0·50	0·00	0·16	3·77	5·40	5·08	3·10	3·84
	30	2·24	0·93	-0·29	-0·50	-0·50	0·00	0·94	4·22	5·36	4·71	3·98	3·58
	Mean	3·03	1·55	0·36	-0·41	-0·50	-0·16	0·18	2·60	5·05	5·11	3·80	3·89
1903	1	3·52	2·56	1·44	-0·35	-0·40	-0·46	-0·43	1·92	6·12	6·00	6·07	3·20
	5	3·48	2·22	1·25	-0·38	-0·42	-0·46	-0·30	2·75	5·98	6·11	6·00	2·90
	10	3·39	1·94	0·67	-0·38	-0·44	-0·46	-0·20	3·45	6·00	6·33	5·86	3·18
	15	3·44	1·88	0·50	-0·40	-0·45	-0·46	-0·12	4·05	6·12	6·33	5·24	3·11
	20	3·24	1·79	0·38	-0·40	-0·46	-0·46	-0·76	4·26	6·22	6·43	4·48	3·00
	25	3·03	1·62	0·01	-0·40	-0·46	-0·46	-0·70	5·24	6·07	6·59	3·95	3·09
	30	2·80	1·50	-0·32	-0·40	-0·46	-0·46	-1·50	6·03	5·95	6·26	3·42	3·00
	Mean	3·27	1·93	0·56	-0·39	-0·44	-0·46	-0·27	3·96	6·07	6·29	5·00	3·07
1904	1	2·98	2·56	2·28	0·00	-0·33	-0·35	-0·24	1·50	5·19	..	..	..
	5	2·80	3·06	1·25	-0·20	-0·32	-0·35	-0·24	2·80	5·11	..	..	..
	10	2·71	2·90	0·50	-0·40	-0·32	-0·31	-0·24	3·96	5·23	..	..	..
	15	2·66	2·75	0·00	-0·25	-0·32	-0·32	-0·24	5·45	5·31	..	..	..
	20	2·57	2·57	0·00	-0·40	-0·32	-0·32	-0·24	5·63	5·45	..	..	..
	25	2·54	2·38	0·00	-0·32	-0·32	-0·10	-0·24	5·30	..	..	..	..
	30	2·44	2·28	0·00	-0·34	-0·35	-0·24	0·20	5·19	..	..	..	..
	Mean	2·67	2·50	0·58	-0·27	-0·33	-0·28	0·23	4·26	..	..	..	..
Zero is R. L. 10·00 metres.

Table LXIX.—Gauges downstream of the Damietta Weir.

Year.	Date.	Jan.	Feb.	Mar.	Apr.	May.	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.
1902	1	0·44	0·50	0·75	0·14	-0·01	0·27	-0·04	1·18	4·34	5·26	4·54	2·62
	5	0·44	0·55	0·75	0·06	-0·01	0·27	-0·04	1·20	4·80	5·14	4·29	2·02
	10	0·41	0·65	0·75	0·00	-0·01	-0·01	-0·04	2·23	5·00	5·02	4·01	1·25
	15	0·36	0·75	0·75	0·00	-0·01	-0·03	0·21	2·73	5·12	5·06	3·80	0·85
	20	0·34	0·50	0·27	-0·01	0·07	-0·04	0·35	3·40	5·20	5·26	3·75	0·60
	25	0·32	0·75	0·17	-0·01	0·10	-0·04	0·38	3·98	5·30	5·02	3·52	0·45
	30	0·50	0·75	0·14	-0·01	0·21	-0·04	1·20	4·26	5·26	4·66	2·77	0·42
	Mean.	0·40	0·64	0·51	0·02	0·05	0·05	0·29	2·71	5·00	5·06	3·81	1·17
1903	1	0·42	0·30	0·29	0·52	-0·12	-0·15	-0·13	1·00	6·06	6·09	6·15	4·77
	5	0·35	0·30	0·77	0·14	-0·12	-0·15	0·67	0·80	6·08	6·22	6·09	4·76
	10	0·33	0·30	0·95	0·00	-0·14	-0·15	0·33	0·50	6·10	6·48	5·95	4·00
	15	0·33	0·30	0·68	-0·02	-0·14	-0·15	1·20	2·30	6·19	6·46	5·46	3·54
	20	0·33	0·30	0·63	-0·08	-0·15	-0·15	1·00	4·32	6·30	6·57	4·95	3·44
	25	0·33	0·30	0·60	-0·10	-0·15	-0·15	1·20	5·29	6·14	6·75	4·87	3·68
	30	0·30	0·30	0·67	-0·12	-0·15	-0·15	1·10	5·98	6·06	6·35	4·85	3·62
	Mean.	0·34	0·30	0·66	0·05	-0·14	-0·15	0·77	2·88	6·13	6·41	5·46	3·97
1904	1	3·60	2·94	0·72	1·55	0·11	-0·05	2·02	3·08	5·20	..	..	..
	5	3·51	1·88	2·53	1·37	0·41	-0·08	1·75	3·64	5·11	..	..	..
	10	3·46	0·77	3·06	1·00	0·46	-0·09	1·16	4·22	5·23	..	..	..
	15	3·41	0·75	2·65	0·45	0·24	-0·09	0·50	5·54	5·31	..	..	..
	20	3·35	0·68	2·38	1·52	0·02	-0·09	-0·03	5·69	5·47	..	..	..
	25	3·32	0·66	1·96	1·16	0·35	1·06	-0·05	5·32	..	..	..	..
	30	3·24	0·72	1·82	0·15	-0·02	1·97	2·00	5·20	..	..	..	..
	Mean.	3·41	1·20	2·16	1·03	0·22	0·38	1·05	4·67	..	..	..	..
Zero is R. L. 10·00 metres.

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