— 51 — 
The following table gives the highest and lowest floods at Cairo 
in intervals of 25 years from A.D. 639 to A.D. 1904. 
The gauges are in pics and kirats and are referred to mean low 
water or R.L. 12*25 metres above mean sea. 
Years 
A. D. 
639- 650 
651- 675 
676- 700 
701- 725 
726- 750 
751- 775 
776- 800 
801- 825 
826- 850 
851- 875 
876- 900 
901- 925 
926- 950 
951- 975 
976-1000 
1001-1025 
1026-1050 
1051-1075 
1076-1100 
1101-1125 
1126-1150 
1151-1175 
1176-1200 
1201-1225 
1226-1250 
1251-1275 
1276-1300 
1301-1325 
1326-1350 
1351-1375 
1376-1400 
1401-1425 
1426-1450 
1451-1475 
1476-1500 
1501-1525 
1526-1550 
Highest maximum 
Lowest maximum 
N° of 
years 
recorded. 
Remarks. 
w 
o 
Ph 
xn 
-4-3 
cS 
P— i 
3 
Metres 
R. L. 
Metres 
referred 
to zero at 
R.L. 12-25 
Pics. 
Kirats. 
Metres 
R. L. 
Metres 
referred 
to zero at 
R.L. 12-25 
19 
18-16 
5*91 
14 
21 
16-74 
4-49 
11 
years 
19 
23 
18-42 
6*17 
15 
12 
17*07 
4-82 
25 ' 
55 
18 
17 
18*08 
5*83 
13 
6 
15-87 
3*62 
25 
55 
18 
22 
18-14 
5*89 
13 
18 
16*13 
3*88 
25 
55 
18 
13 
18*04 
5*79 
14 
1 
2 
16-28 
4-03 
25 
55 
18 
10 
18*00 
5*75 
14 
19 
16*70 
4-45 
25 
55 
18 
4 
17*93 
5*68 
14 
1 
16-29 
4-04 
25 
55 
17 
18 
17-82 
5*57 
14 
2 
16-31 
4*06 
25 
55 
17 
12 
17*76 
5*51 
13 
5 
15*85 
3*60 
25 
55 
18 
8 
17*98 
5-73 
15 
15 
17-15 
4-90 
25 
55 
17 
22 
17*86 
5*61 
14 
22 
16-76 
4-51 
25 
55 
18 
1 
17*90 
5-65 
13 
4 
15-83 
3-58 
25 
55 
19 
• • 
18*16 
5-91 
14 
17 
16*65 
4-40 
25 
55 
18 
5 
17-94 
5*69 
14 
19 
16-60 
4-45 
24 
55 
26 
23 
21*65 
9*40 
15 
2 
16*85 
4*60 
25 
55 
Max. year 19£ 
19 
8 
18*25 
6*00 
14 
9 
16*47 
4-22 
25 
55 
18 
6 
17*95 
5*70 
15 
9 
17*01 
4*76 
25 
55 
17 
18 
17-71 
5*46 
12 
3 
15*30 
3*05 
25 
55 
Min. year 107C 
18 
16 
18*07 
5*82 
13 
17 
16-11 
3*86 
24 
55 
19 
1 
18*17 
5*92 
16 
12 
17-48 
5*23 
.25 
55 
18 
18 
18*09 
5-84 
16 
9 
17*45 
5-20 
24 
55 
18 
18 
18*09 
5*84 
15 
1 
16*83 
4*58 
25 
55 
18 
14 
18*05 
5*80 
12 
21 
15-68 
3*43 
25 
55 
Min. year 119£ 
18 
8 
17-98 
5*73 
15 
7 
16-96 
4*71 
25 
55 
18 
8 
17*98 
5-73 
14 
16-27 
4*02 
25 
55 
18 
17 
18*08 
5*83 
16 
12 
17-48 
5*28 
23 
55 
19 
7 
18*24 
5*99 
15 
18 
17-22 
4*97 
25 
55 
18 
19 
18*10 
5*85 
16 
2 
17-37 
5*12 
25 
55 
18 
21 
18*13 
5*88 
16 
5 
17-40 
5-15 
25 
55 
24 
• • 
20*05 
7-80 
16 
18 
17*55 
5-30 
24 
55 
Max. year 135$ 
20 
3 
18-46 
6-21 
16 
13 
17*50 
5*25 
25 
55 
20 
12 
18-56 
6-31 
16 
13 
17-50 
5*25 
24 
55 
20 
21 
18*67 
6-42 
15 
7 
16*96 
4*71 
23 
55 
18 
8 
17-98 
5-73 
• • 
• a 
• 6 
• • 
1 
55 
20 
21 
18*67 
6*42 
19 
17 
18-55 
6*30 
2 
55 
20 
16 
18*61 
6*36 
16 
• 9 
17-35 
5-10 
19 
55 
• • 
* 9 
9 O 
9 9 
9 9 
© 9 
! 9 9 
9 9 
9 9 
