Annual Report of the Consulting Chemist for 1881. 339 
sold at 12/. 15a-., or 15s. less than No. 3 ; why the better guano 
should have been sold at 15s. less per ton it is difficult to under- 
stand ; No. 4, however, was too dear at 12/. 15s. a ton. 
No. 5, sold at 12/. a ton (cash), was not worth more than about 
10/. a ton. 
No. 6, represented as a first-class guano, was sold at 13/. 10s. 
per ton ; but in my judgment it was not worth more than about 
12/. per ton. 
No. 7 is a good guano, but too dear at 13/. Is. %d. by about 
1/. a ton. 
No. 8 was sold at Liverpool at 12/. 12s. 6c?., or about 
1/. 12s. 6fZ. more than it was worth. 
No. 9, a guano which contained only 6^ per cent, of ammonia, 
was sold as the best guano at 12/. a ton, or about 3/. more than 
it was worth. 
No. 10 was also sold at 12/. per ton, and was scarcely worth 
9Z. 10s. a ton. 
No. 11 : the cost in Liverpool was 13/. 5s. a ton, but I need 
hardly say that such a guano was worth only from 10/. 10s. to 
11/. a ton. 
The following analyses show the composition of two samples 
of guano, represented as having been taken from the same ship. 
The guano was guaranteed to contain 10^ per cent, of ammonia 
and 24 per cent, of phosphates : — 
Pekdvian Guanos. 
No. 1. 
No. 2. 
1.3-28 
33-59 
20-29 
16-15 
16-69 
7-45 
28-01 
17-60 
16-34 
30-60 
100-00 
100-00 
7-49 
9-09 
4-91 
10-71 
14-20 
31-00 
6- 16 
7- 48 
3-24 
7-07 
11-30 
24-67 
The sample marked No. 2, it will be seen, differs greatly in 
composition from No. 1. No. 2 contained 30-6 of sand, and 
2 J per cent, less ammonia than No. 1. 
z 2 
