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

1903
Date.Jan.Feb.Mar.Apr.May.Jun.Jul.Aug.Sep.Oct.Nov.Dec.
1..........1·002·204·214·522·88....
2..........0·932·184·004·522·78....
3..........0·852·153·564·602·78....
4..........0·852·743·254·702·90....
5..........0·892·603·354·552·75....
6..........0·892·303·274·662·67....
7..........0·862·103·304·582·50....
8..........0·972·103·074·502·50....
9..........1·052·513·294·152·38....
10..........1·112·353·724·302·30....
11..........1·002·654·613·892·22....
12..........0·972·314·373·952·17....
13..........0·902·104·533·802·17....
14..........0·902·104·603·842·08....
15..........0·932·654·853·712·05....
16..........0·982·284·803·882·10....
17..........1·202·404·904·362·10....
18..........1·502·375·504·20......
19..........1·702·555·504·002·05....
20..........1·982·745·754·12......
21..........1·882·835·473·80......
22..........1·702·705·123·45......
23..........1·902·704·823·30......
24..........1·843·004·543·25......
25..........2·202·624·353·10......
26..........1·932·534·202·89......
27..........2·242·604·803·42......
28..........2·202·764·553·10......
29..........2·432·804·553·13......
30..........2·203·294·753·05......
31............3·544·45........
1904
1..........-1·001·573·792·70......
2..........-1·001·893·852·65......
3..........-0·801·803·932·55......
4..........-0·561·933·902·90......
5..........-0·102·044·043·50......
6..........+0·192·084·083·40......
7..........0·312·454·003·30......
8..........0·502·724·002·92......
9..........0·402·833·802·86......
10..........0·382·973·202·98......
11..........0·352·883·932·60......
12..........0·302·802·902·52......
13..........0·302·802·712·85......
14..........0·303·102·632·79......
15..........0·293·032·702·09......
16..........0·282·743·39........
17..........0·322·913·39........
18..........0·553·363·39........
19..........0·403·303·28........
20..........0·802·103·20........
21..........0·803·123·20........
22..........0·703·203·18........
23..........0·853·502·80........
24..........0·963·722·83........
25..........0·953·132·90........
26..........1·153·052·91........
27..........1·303·362·96........
28..........1·453·763·30........
29..........1·513·693·50........
30..........1·504·153·10........
31............3·803·08........
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.
12·4310·960·972·926·257·8015·93
52·3520·981·002·896·307·7955·45
102·2331·001·033·006·407·82105·08
152·0741·021·053·206·487·75154·73
201·9351·041·073·406·567·70204·44
251·8261·061·103·556·797·70254·20
301·7071·051·183·606·677·62304·00
Mean.2·0681·051·273·656·797·64Mean.4·74
February.91·071·363·706·887·45 Novem.
11·63101·101·433·757·097·5013·90
51·62111·091·453·757·457·6353·75
101·54121·071·483·787·537·67103·53
151·47131·061·474·007·587·57153·38
201·38141·051·474·147·707·55203·12
251·34151·041·534·207·767·50252·97
281·24161·051·704·357·657·41302·83
Mean.1·47171·041·874·307·687·35Mean.3·33
March.181·032·004·277·747·25 Decem.
11·24191·032·154·357·657·2012·86
51·24201·002·184·557·547·0552·75
101·08211·002·164·597·466·90102·70
150·98220·942·144·597·466·80152·52
200·94230·862·144·627·436·70202·51
250·84240·872·174·627·416·62252·30
300·86250·882·274·657·386·51302·13
Mean.1·01260·912·504·957·506·41Mean.2·52
April.270·872·705·057·446·27
10·83280·852·825·167·446·18
50·86290·872·865·587·746·13
100·82300·932·885·747·816·08
150·63310·95..6·157·87..
200·72Mean.0·991·784·227·277·18
250·73
300·93
Mean.0·74
1902
Date.Month.Date.May.June.July.Au-
gust.
Sep-
tem-
ber.
Date.Month.
January. October.
12·0410·670·862·074·326·7716·23
51·9020·670·862·274·556·7556·14
101·7430·710·862·464·786·70105·73
151·5140·710·852·524·906·72155·14
201·4750·720·852·585·066·70204·62
251·4060·820·912·645·176·72254·28
301·3070·781·042·625·176·77304·06
Mean.1·5980·751·182·645·276·95Mean.5·11
February.90·701·332·655·376·91 Novemb.
11·28100·671·412·725·456·9613·96
51·21110·631·442·845·497·0553·65
101·12120·631·442·955·556·97103·55
151·07130·651·483·045·676·93153·30
201·06140·651·523·105·856·91203·11
250·96150·651·573·155·856·94253·07
280·94160·661·653·155·856·89302·95
Mean.1·09170·671·643·225·856·84Mean.3·34
March.180·681·583·215·876·77 Decemb.
10·88190·691·503·365·826·7512·94
50·82200·731·493·415·896·6952·88
100·84210·761·473·486·216·67102·75
150·83220·771·473·546·376·63152·68
200·76230·821·533·546·426·55202·55
250·76240·851·703·596·556·47252·53
300·86250·861·903·726·486·37302·37
Mean.0·81260·862·023·826·506·35Mean.2·66
April.270·872·063·946·486·38
10·83280·872·06..6·456·33
50·78290·852·103·886·636·29
100·64300·862·004·006·806·25
150·68310·86..4·216·80..
200·64Mean.0·741·463·145·806·70
250·67
300·61
Mean.0·68
1903
Date.Month.Date.May.June.July.Au-
gust.
Sep-
tem-
ber.
Date.Month.
January. October
12·3610·831·272·804·837·7317·00
52·4320·841·432·824·897·7356·84
102·2430·831·632·824·957·72106·58
152·1540·821·742·895·657·70156·15
202·0950·791·802·935·857·72205·73
251·9560·761·842·985·987·77255·86
301·8070·751·853·106·187·82305·33
Mean.2·1380·731·863·256·277·74Mean.6·16
February.90·721·963·406·377·72 Novemb.
11·70100·762·103·476·437·7215·17
51·59110·792·163·436·477·7254·96
101·51120·802·183·466·507·53104·53
151·42130·802·163·566·877·64154·12
201·38140·792·133·747·137·52203·88
251·23150·772·153·827·207·45253·75
281·20160·762·213·957·407·4030..
Mean.1·44170·762·274·007·537·40Mean.4·28
March.180·762·374·027·537·37 Decemb.
11·20190·772·504·007·677·3513·52
51·26200·782·604·107·757·4553·38
101·16210·802·724·108·057·45103·28
151·10220·802·764·138·107·45153·19
201·07230·812·764·237·807·47203·10
251·01240·822·704·377·577·47253·05
300·92250·832·654·507·607·43302·92
Mean.1·10260·862·684·677·527·43Mean.3·22
April.270·912·704·737·627·40
10·92280·962·704·837·677·30
50·95291·032·704·857·567·14
100·90301·092·744·807·727·04
150·85311·17..4·797·74..
200·82Mean.0·822·243·826·917·52
250·80
300·81
Mean.0·86
1904
Date.Month.Date.May.June.July.Au-
gust.
Sep-
tem-
ber.
Date.Month.
January.
12·9011·111·331·956·226·75
52·8621·091·421·986·286·67
102·7531·071·472·146·346·67
152·6841·071·472·326·596·68
202·5951·071·452·436·906·69
252·5261·061·452·596·936·93
302·4671·071·452·806·976·98
Mean.2·6681·071·463·076·876·85
February.91·091·523·406·876·89
12·50101·111·753·706·776·83
52·35111·151·883·816·706·73
102·34121·101·974·006·686·68
152·14131·002·003·966·656·68
202·00141·002·003·946·646·68
251·94150·941·973·946·666·67
291·74160·961·974·156·60
Mean.2·14170·961·984·356·54
March.180·982·004·606·52
11·67190·982·004·786·60
51·65201·022·004·846·47
101·52211·092·005·036·46
151·37221·151·905·126·50
201·29231·171·855·006·45
251·22241·151·885·006·50
301·17251·091·895·086·57
Mean.1·39261·081·905·416·48
April.271·081·915·656·48
11·25281·101·925·606·45
51·15291·131·935·576·69
101·17301·191·935·786·83
151·11311·28..6·006·79
201·05Mean.1·081·794·136·61
251·12
301·10
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.
12·641·951·310·680·240·101·044·877·807·195·003·42
22·611·931·290·650·240·111·085·017·827·104·903·39
32·591·911·270·640·220·121·165·157·817·054·843·37
42·571·891·250·630·210·121·215·257·826·964·793·32
52·551·871·230·610·200·101·275·517·846·914·723·30
62·531·841·210·580·180·121·345·717·826·854·663·26
72·511·821·180·560·170·131·415·947·826·774·543·24
82·471·811·170·560·160·151·496·157·816·714·473·20
92·461·781·150·540·140·171·576·387·816·664·373·19
102·441·761·130·520·130·191·656·527·806·594·353·16
112·411·731·110·510·130·191·746·627·806·534·283·13
122·391·711·080·490·130·221·816·707·836·474·223·10
132·371·691·070·470·130·241·906·787·776·404·173·07
142·341·661·050·460·130·271·976·927·766·334·103·03
152·321·631·020·450·130·292·106·967·766·254·053·01
162·301·611·000·440·120·322·237·047·746·174·002·99
172·281·590·980·420·120·342·367·117·716·073·962·95
182·251·560·960·410·120·372·527·177·686·023·912·94
192·221·540·930·400·110·392·657·277·695·983·862·91
202·211·520·920·390·110·412·797·317·675·903·822·88
212·181·500·900·380·100·432·957·327·675·843·812·85
222·161·470·880·360·100·473·117·357·635·783·752·82
232·131·450·860·350·080·503·297·487·605·683·702·79
242·131·450·830·340·080·563·467·557·565·613·632·77
252·101·420·820·330·080·673·587·587·525·533·642·76
262·081·390·790·310·080·713·737·607·535·453·612·73
272·051·380·770·290·080·793·947·667·435·373·572·68
282·041·350·750·270·080·834·167·667·375·303·542·65
292·02 0·730·260·080·984·367·697·315·223·492·62
301·99 0·710·240·080·974·587·747·255·153·422·60
311·96 0·69 0·09 4·737·78 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.
12·061-0·41-0·321·506·498·7018·11
51·952-0·37-0·101·576·658·7257·89
101·753-0·370·101·616·748·83107·64
151·574-0·370·261·686·818·90157·21
201·415-0·390·311·726·888·95206·61
251·236-0·440·461·816·978·97256·16
301·007-0·480·581·936·978·95305·68
Mean.1·538-0·500·711·996·978·92Mean.7·04
February.9-0·500·822·087·068·88 Nov.
10·9410-0·530·872·157·358·8315·48
50·8011-0·530·872·247·758·8155·19
100·6712-0·530·842·388·168·77104·87
150·5813-0·530·822·498·368·74154·58
200·4414-0·550·782·528·458·74204·31
250·3515-0·550·712·718·478·74254·17
280·3116-0·570·672·838·438·70304·00
Mean.0·5817-0·570·672·988·368·63Mean.4·65
March.18-0·570·643·168·438·56 Dec.
10·2819-0·590·643·258·508·4713·95
50·2620-0·590·643·378·368·4353·73
100·1921-0·610·673·438·618·41103·57
150·1322-0·640·733·668·688·45153·41
200·0423-0·640·824·028·638·45203·28
25-0·0124-0·640·944·478·658·43253·16
30-0·0825-0·641·124·878·688·38303·03
Mean.0·1126-0·661·305·218·748·34Mean.3·45
April.27-0·661·415·468·778·32
1-0·1228-0·661·455·778·748·27
5-0·2629-0·661·476·078·748·20
10-0·3030-0·611·476·208·708·16
15-0·3231-0·50..6·318·68..
20-0·39Mean.-0·540·743·278·008·62
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.
12·6210·350·191·304·726·1816·04
52·5420·370·221·484·746·2055·64
102·4230·370·241·634·746·25105·21
152·2640·350·261·754·746·27154·92
202·1350·350·281·814·886·27204·63
251·9960·330·311·864·856·27254·53
301·8170·330·311·905·036·22304·09
Mean.2·2580·350·331·975·266·18Mean.5·01
February.90·400·372·045·396·11 Novemb.
11·77100·420·462·135·356·0913·88
51·70110·420·552·265·376·1353·73
101·57120·400·692·445·376·16103·61
151·39130·370·802·715·416·13153·41
201·25140·330·873·015·556·07203·23
251·17150·280·913·235·756·02252·94
281·17160·260·963·326·076·00302·67
Mean.1·43170·241·033·326·186·02Mean.3·35
March.180·221·073·286·226·04 Decemb.
11·14190·171·093·216·346·0012·60
51·09200·171·093·236·405·9552·51
100·96210·151·093·326·296·02102·40
150·78220·151·073·466·186·11152·22
200·69230·151·073·576·136·25202·13
250·58240·151·073·646·136·27251·95
300·49250·131·073·706·136·27301·97
Mean.0·82260·101·053·726·116·20Mean.2·25
April.270·101·053·996·136·11
10·46280·131·074·216·186·11
50·40290·151·094·546·186·13
100·33300·171·164·656·186·09
150·31310·19..4·676·16..
200·42Mean.0·260·742·945·686·13
250·51
300·35
Mean.0·40
Zero is R. L. 85·00 metres.
1878
Date.Month.Date.May.June.July.Au-
gust.
Sept.Date.Month.
January. October.
11·971-0·41-0·660·675·397·6019·15
51·882-0·44-0·660·715·467·7358·92
101·753-0·46-0·660·785·487·89108·47
151·614-0·48-0·660·875·558·02157·91
201·485-0·48-0·680·915·628·14207·60
251·396-0·46-0·680·965·628·23257·42
301·237-0·46-0·711·005·538·32306·83
Mean.1·628-0·48-0·711·035·418·38Mean.8·05
February.9-0·50-0·711·035·688·47 Novem.
11·2110-0·50-0·681·056·258·5216·72
51·0711-0·50-0·661·076·318·5656·34
100·9112-0·50-0·661·126·728·70105·86
150·8013-0·48-0·661·186·888·81155·50
200·6714-0·48-0·661·277·068·86205·17
250·5115-0·50-0·661·447·178·90254·92
280·4616-0·50-0·641·707·178·86304·69
Mean.0·8017-0·50-0·611·977·108·83Mean.5·60
March18-0·53-0·592·177·128·83 Decem.
10·4419-0·55-0·592·337·268·8114·67
50·3320-0·57-0·592·477·488·8654·57
100·2421-0·57-0·612·767·738·86104·38
150·1722-0·57-0·612·987·898·81154·20
200·0823-0·59-0·593·337·968·86204·09
25-0·0324-0·61-0·503·488·028·92253·93
30-0·0525-0·64-0·323·828·078·99303·77
Mean.0·1726-0·64-0·054·228·098·97Mean.4·23
April.27-0·640·194·457·918·92
1-0·1028-0·660·404·637·699·01
5-0·1229-0·680·584·787·579·08
10-0·1930-0·680·644·967·539·13
15-0·2631-0·68..5·217·55..
20-0·26Mean.-0·56-0·472·276·858·63
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.
11·971-0·37-0·080·373·897·4216·56
51·932-0·39-0·080·493·957·3856·09
101·793-0·41-0·100·674·027·44105·59
151·664-0·44-0·100·824·137·62155·06
201·575-0·44-0·100·964·327·76204·67
251·486-0·46-0·121·054·677·82254·31
301·257-0·46-0·121·095·287·82304·15
Mean.1·668-0·46-0·141·155·827·76Mean.5·20
February.9-0·46-0·191·236·097·73 Nov.
11·2110-0·46-0·211·396·237·7113·95
51·0711-0·44-0·211·576·367·6953·75
100·9612-0·44-0·231·706·527·69103·55
150·8713-0·41-0·261·816·617·67153·32
200·7114-0·39-0·261·906·687·64203·07
250·6715-0·35-0·261·956·777·55252·89
280·5816-0·30-0·262·056·977·48302·67
Mean.0·8717-0·26-0·232·247·317·55Mean.3·31
March.18-0·23-0·212·567·587·60 Dec.
10·5519-0·21-0·192·677·697·6212·65
50·4920-0·19-0·172·787·807·5552·51
100·4021-0·14-0·142·837·807·51102·35
150·2722-0·12-0·102·897·787·46152·26
200·1723-0·12-0·053·017·757·37202·17
250·0824-0·10-0·033·077·737·25252·08
30-0·0325-0·08-0·013·267·627·22301·90
Mean.0·2726-0·080·063·487·537·10Mean.2·27
April.27-0·050·103·617·496·99
1-0·0728-0·030·223·667·446·63
5-0·1029-0·010·313·687·396·70
10-0·1730-0·030·353·737·356·61
15-0·2431-0·08..3·807·42..
20-0·26Mean.-0·27-0·092·186·517·44
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.
11·861-0·39-0·460·422·566·1616·20
51·792-0·39-0·480·492·656·1356·00
101·613-0·39-0·500·492·696·09105·89
151·414-0·37-0·530·492·766·09155·64
201·215-0·39-0·550·492·836·20205·30
250·986-0·41-0·570·462·926·38254·67
300·857-0·41-0·520·463·036·45304·09
Mean.1·388-0·43-0·520·493·106·45Mean.5·40
February.9-0·46-0·500·563·166·40 Nov.
10·7810-0·46-0·460·653·256·3613·97
50·6711-0·46-0·370·833·416·3153·77
100·6212-0·48-0·350·873·666·36103·37
150·4913-0·48-0·300·944·006·37153·10
200·4214-0·48-0·300·964·296·47202·85
250·3315-0·46-0·261·014·426·58252·60
280·2616-0·43-0·301·074·566·65302·30
Mean.0·5117-0·41-0·231·234·676·72Mean.3·15
March.18-0·39-0·211·394·786·72 Dec.
10·2219-0·39-0·281·544·876·6512·33
50·1520-0·39-0·301·614·946·5852·31
100·1021-0·41-0·321·665·086·58102·15
150·0122-0·39-0·321·705·286·61152·04
20-0·0823-0·37-0·301·775·396·58201·81
25-0·1724-0·39-0·231·875·426·52251·79
30-0·2125-0·39-O·161·975·376·47301·55
Mean.0·0026-0·39-0·052·085·326·43Mean.2·00
April.27-0·410·112·205·326·36
1-0·2128-0·430·202·295·446·31
5-0·2329-0·430·242·385·716·27
10-0·3030-O·460·332·455·966·23
15-0·2631-0·46..2·546·11..
20-0·23Mean.-0·42-0·281·274·296·41
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.
11·521-0·62-0·191·073·147·3717·30
51·662-0·64-0·191·163·217·3957·06
101·343-0·62-0·191·273·327·35106·58
151·364-0·59+0-011·393·527·39156·40
201·325-0·52-0·051·483·777·53206·07
251·076-0·52-0·031·523·957·58255·55
301·077-0·50+0·011·524·117·56305·30
Mean.1·338-0·570·011·524·137·62Mean.6·32
February.9-0·57-0·031·524·117·02 Novemb.
10·8510-0·57-0·011·554·097·6215·46
50·8211-0·590·011·574·137·6855·15
100·7312-0·590·011·594·347·75104·67
150·5113-0·590·061·594·907·75154·25
200·4014-0·640·081·665·447·73204·06
250·2815-0·550·131·685·737·66253·52
280·0616-0·550·201·725·917·64303·21
Mean.0·5217-0·550·201·756·047·62Mean.4·33
March.18-0·570·741·826·137·58 Decemb.
10·0619-0·570·941·916·347·5513·16
50·1020-0·551·102·026·657·4853·03
100·1021-0·481·122·187·017·42102·71
15-0·0322-0·281·232·337·217·35152·51
20-0·0523-0·281·342·447·397·35202·33
25-0·2624-0·211·142·477·497·28252·31
30-0·2825-0·351·122·567·667·33302·15
Mean.-0·0526-0·351·272·697·827·35Mean.2·60
April.27-0·371·302·857·937·35
1-0·2828-0·370·922·967·847·33
5-0·2329-0·340·923·037·667·35
10-0·3930-0·280·983·077·537·33
15-0·4831-0·14..3·127·46..
20-0·39Mean.-0·480·471·975·687·50
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.
12·111-0·080·260·944·456·341..
52·132-0·120·280·894·496·345..
101·953-0·140·280·874·606·2710..
151·864-0·210·280·874·876·2715..
201·795-0·210·280·855·106·4720..
251·686-0·190·330·835·286·6125..
301·577-0·190·600·835·506·6330..
Mean.1·878-0·170·650·835·846·58Mean...
February.9-0·140·670·806·116·52 Novem.
11·5710-0·140·690·786·386·471..
51·5211-0·050·710·786·636·525..
101·4312+0·140·850·786·856·5810..
151·36130·040·890·786·976·7415..
201·29140·010·940·806·926·8820..
251·2715-0·050·920·836·856·8325..
281·1716-0·050·960·876·74..30..
Mean.1·3717-0·051·050·946·65..Mean...
March.18-0·051·141·036·61.. Decem.
11·0319-0·051·181·286·56..1..
50·7420-0·051·231·616·54..5..
100·71210·151·212·156·54..10..
150·69220·101·212·626·49..15..
200·46230·131·182·926·47..20..
250·42240·131·213·086·43..25..
300·20250·151·163·166·40..30..
Mean.0·60260·131·143·236·43..Mean...
April.270·101·163·436·36..
10·13280·101·213·706·34..
5-0·10290·061·124·026·27..
10-0·12300·061·074·276·25..
150·04310·04..4·426·29..
200·06Mean.-0·020·861·786·14..
250·04
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.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.
19021....................12·8017·77
5....................13·7218·16
10....................14·9118·59
15....................15·7319·02
20..................9·9016·5819·39
25..................10·9817·1819·77
30..................12·5017·6720·25
Mean....................15·5119·00
1903120·3021·0021·0520·6719·7617·63..........10·56
520·3821·1321·0920·5519·6316·85..........10·53
1020·4121·0621·0020·3419·3915·69........10·6312·10
1520·6121·0320·9220·1919·1814·41........10·5313·33
2020·6721·0620·7919·9918·9812·42........6·9014·49
2520·8621·0020·7519·8918·489·43........10·5915·18
3020·9621·0320·6819·7217·977·07........10·5716·14
Mean20·6021·0420·9020·1919·0513·47..........13·19
1904116·2919·1820·4420·9120·9419·66............
516·8019·4220·7221·0020·9919·06............
1017·3719·7021·0121·1521·0917·97............
1517·8120·0020·9621·2520·9116·22............
2018·2620·2821·0121·1620·7313·84............
2518·6620·3720·9421·0620·3310·26............
3019·1320·4120·9020·9619·836·56............
Mean17·7619·9120·8521·0720·6914·80............
Zero is R. L. 85·00 metres.