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 Ramâdi81102449305808675473377993
Ramâdi to Esna7667445545461639869667695
Esna to Kena11585244765336622167267363
Kena to Sohâg15897347185600653571217873
Sohâg to Assiout98103752206305770586839749
Assiout to Minia13889951496205778388459937
Minia to Beni-Suêf11791550356007731581969140
Beni-Suêf to Koshesha3466550406080753283799247
Koshesha to Cairo81103153646388781386489495
Cairo to the Barrage241402541466288346925810184
Assuân to Assiout52892047605680669073108080
Assiout to Koshesha28987050806100755085109520
Koshesha to Cairo81103053606380781086409490
Assuân to Cairo89891049305890708078308690

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 Ramadi818331671177475383399470547594647
Ramadi to Esna76512956971435651346415486529585
Esna to Kena1159841799102587398514614715773847
Kena to Sohag12815459213914883119154745885103211251244
Sohag to Assiout9810241010613796104102512618755851955
Assiout to Minieh138124586146218147151124710856107412201371
Minieh to Beni Suêf1171074821141531031101075897038568591069
Beni Suêf to Kushesha34231493549292923171207256285314
Kushesha to Cairo818435183115686984434517633700769
Cairo to the Barrage2834962941222234130159200222244
Assuân to Assiout528487203048453432740548725173001353538624267
Assiout to Kushesha289254121729542027829125414711766218624642755
Kushesha to Cairo818435183115686984435518633701770
Assuân to Cairo8988253598862106967376582544235285635470277792

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

From.To.Mean width of water surface
06·07·08·08·59·0
AssuânRamadi400840880103012701400
RamadiEsna340850890103012601620
EsnaKena35082085094011201400
KenaSohag380870890100013001560
SohagAssiout40010001170172020802170
AssioutMinieh3909701180189020602080
MiniehBeni Suêf4909601300155018001840
Beni SuêfKushesha50010001390169017201730
KusheshaCairo4509601100157017001700
CairoBarrage4409401460184018601890
AssuânAssiout370880940114014101630
AssioutKushesha4609801290171018601880
KusheshaCairo4509601100157017001700
AssuânCairo4309401110147016601740
Area of water surface in millions of square metres.
AssuânAssiout200470500600740860
AssioutCairo130280370490540540
AssuânCairo4008401000132014901560

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.
AssuânSilsila7072111500112600
SilsilaKasr-es-Saad250258114800114800
Kasr-es-SaadKhazindaria150159112300113400
KhazindariaAssiout6063111800114500
AssioutBeni Mazâr180196111000111800
Beni MazârAshmant9094111000111400
AshmantCairo100106111600112300
CairoBarrage2325110800120000
AssuânCairo900948112200113000

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