KEl'OUT OF FHKiMIFAb LAIiOKATOKY 389 
WHITE NILE, 1907 
Januarj* 
F ebruary 
March 
April 
May 
Solids in suspension 
8G-20 
70-10 
58-GO 
52-0() 
77-60 
Solids in solution 
127-00 
1,52-70 
163-00 
183-05 
168-80 
“ Free ” ammouiji 
...(NHJ 
0-019 
O-OOo 
O-OUG 
0-(K)o 
O-OOG 
“ Albuminoid ” ammonia 
...(NH„) 
0-446 
0-271 
0-349 
0-312 
0-425 
O.vygen consumed in 10 min. at 
100 " c 
G-,ol 
5*04 
.5-23 
.5-41 
4-89 
Nitrates ... 
... (N) 
0-029 
O-OGG 
0-024 
0-030 
0-04G 
Nitrites . . 
... (N) 
none 
none 
none 
none 
none 
Chlorides 
... (Cl) 
4-G7 
G-61 
7-78 
9-G7 
11-47 
Sulphates 
... (SO,) 
none 
none 
none 
trace 
none 
Carbonates 
... (CO,) 
.58-23 
72-70 
,84-Gl 
94-16 
84-80 
Calcium. 
... (Ca) 
12-12 
15-32 
14-90 
14-92 
7-98 
JIagucsium ... . 
... (Mg) 
7-35 
8-57 
12-32 
12-19 
10-G7 
Potassium .. . 
... (K) 
6-70» 
9-15* 
12-03® 
- 
17-47* 
Sodium ... 
... (Na)| 19--27“ 
27-33* 
29-G3® 
1 
28-37* 
Silica . . 
...(SiO.,; 
28-00 
10-40 
12-40 
— 
7-30 
BLUE NILE, 1907 
J anuary 
February 
March 
April 
May 
Solids in suspension . 
2-40 
4-75 
4-00 
11-00 
4-80 
Solids in solution . 
120-00 
136-85 
128-80 
1.30-55 
153-60 
• ‘ Free ” ammonia . 
.(NH,) 
0-010 
0-006 
0.008 
0-006 
O-OO-l 
“ Albuminoid ” ammonia 
.(NHJ 
0-(l,5G 
0-115 
0-222 
O-220 
0-150 
O.vygen consumed in 10 min. at 100 ' 
C 
1-98 
2-11 
2-16 
2-66 
2-40 
Nitrates ... . 
- (N) 
0-049 
0-018 
0-031 
0-034 
0-023 
Nitrites. 
■ (N) 
none 
none 
none 
none 
none 
Chlorides . 
. (Cl) 
1-95 
2-14 
2-14 
3-34 
3-82 
Sulphates 
■ (80,) 
7-73 
7-o7 
5-97 
G.23 
3-92 
Carbonates 
- (CO,) 
,50-28 
.■)7**26 
61-.38 
aU- 24 
68-28 
Calcium ... ... . 
- (O-'O 
17-88 
22-36 
23-60 
24-13 
23-.56 
Magnesium 
- (Mg) 
7-26 
6-99 
8-83 
8-20 
11-81 
Potas.sium . 
- (K) 
1-43* 
1-40* 
1-29* 
— 
1-64* 
Sodium. 
- (Na) 
6-02* 
8-85* 
8-20* 
— 
15-7* 
Silica . 
.(SiO.,) 
10-80 
10.40 
13-60 
— 
10-40 
® The proportions of K.,0 and Na^O to which these are equivalent have been erroneously stated at about twice 
their value in a recent publication of the Survey Department of Egypt, ’‘The Chemistry of the lliver Nile.” 
The analytical data were furnished that Department in advance of the pre.seut publication. 
