196 Annual Report of the Consulting Chemist. 
Composition of Samples of Guano fkom Independence Bay. 
No. 
1. 
No. 
2. 
No. 3. 
No. 4. 
8 
17 
8 
18 
9-74 
8-68 
*Organic matter and salts of ammonia .. 
35 
93 
33 
72 
31-86 
36-97 
21 
92 
19 
85 
20-26 
18-50 
14 
73 
13 
20 
13-33 
13-21 
19 
25 
25 
05 
24-81 
22-64 
100 
00 
100 
00 
100-00 
100-00 
7 
64 
8 
06 
7-33 
8-53 
9 
27 
9 
79 
8-90 
1036 
f Containing soluble phosphoric acid 
1 
12 
96 
1-32 
•70 
Equal to tribasic phosphate of lime 
2 
44 
2 
09 
2-88 
1-53 
Total percentage of phosphoric acid 
11 
16 
10 
05 
10-60 
917 
These guanos from Independencia Bay were very dry, and 
nearly as rich in ammonia as the Pabillon deposit, but they 
were weak in phosphates and contained a good deal of sand. 
Cargoes have been brought from two islands bearing the name 
of Lobos Island, one being Lobos de Afuera, and the other Lobos 
de Tierra. 
Composition of Samples of Lobos Island Guano. 
No. 
1. 
No. 
2. 
No. 3. 
No. 4. 
21 
19 
21 
79 
24-95 
11 90 
"Organic matter and salts of ammonia . . 
18 
49 
20 
07 
19-45 
1690 
42 
07 
40 
24 
37-10 
50-97 
11 
46 
11 
52 
8-76 
11-93 
6 
79 
6 
38 
9-74 
8-30 
100 
00 
100 
00 
100-00 
100-00 
3 
48 
3 
67 
4-07 
2-97 
4 
22 
4 
46 
4-94 
3-60 
t Containing soluble phosphoric acid 
2 
33 
1 
27 
1-08 
•80 
Equal to tribasic phosphate of lime 
5 
08 
2 
77 
2-36 
1-87 
Total percentage of phosphoric acid 
21 
60 
19 
70 
18-01 
23-35 
