PLATE XVIII 
Uj 
03 
UJ 
CO 
5: 
'C 
L-l 
5; P- 
*=c K-» 
Cc UJ 
£5 i 
5 
cc 
03 
.p 20 Metres 
- 15 
_ 10 
f*** \ 
s Q 
s 
WS§. 
mm 
_ 5 
n Datum Sea Ley el. 
pill 
1 
Slope of Water Surface 
3,600 
J. .... 
in Flood 
230 22 
1 20 10 0 
Kilometres from Head. 
1 ... 
2.45 
C3 CNI 
5 § § Top of Nile Bank. 
^ Csi 

i n n 
1.50 
S 05 
2 5 5 Flood Level 1 892, 
»—** T ^"“ ***,, 
_J 
^ 1 ^ 
s 
§ 2 § Ground Levels. 
■i ^ 
1 
1 1 1 
1 ^ 
§ § ^3 Bed Levels, 
'< o> S 
22 
20 
10 
0 
I 
