226 Quarterly Report of the Chemical Committee. 
No. 1 manure was scarcely better than the sample of fish and 
bone manure which Mr. Baskett sent before, and which was 
valued at 10^. a ton in comparison with Peruvian guano. 
This manure, it will be seen, contains but little phosphate of 
lime, and yields only \ per cent, of ammonia. 
No 4 is very similar to No. 1, but somewhat richer in phos- 
phate of lime, and worth about 75. more per ton than No. 1. 
Both these manures consist principally of gypsum and carbonate 
of lime or chalk. 
6. The next case is a sample of blood and bone manure, 
which was sent by Mr. T. H. Saunders, VVatercombe Farm, near 
Dorchester, who states that it was manufactured by Messrs. 
Festine, Brothers, near Weymouth, and sold at 5Z. a ton. On 
analysis its composition was found to be as follows : — 
Moisture 22-72 
* Organic matter 19'97 
** Phosphoric acid 1-82 
CTxide of iron and alumina 11'59 
Lime, carbonate and suljAate of 8'85 
Alkalies, &c 5-73 
Sand 29-32 
100-00 
* Containing nitrogen "88 
Equal to ammonia 1'07 
'* Equal to tribasic phosphate of lime .. .. 3-97 
This so-called blood and bone manure, it will be seen, con- 
tained only 4 per cent, of bone-phosphate, and only 1 per cent, 
of ammonia, and as much as 22J per cent, of moisture, and 29 
per cent, of sand. Dr. Voelcker reported it to be worth not more 
than 1/. 10s. a ton, but Mr. Saunders thinks 205. a ton. 
In the course of their inquiries the Chemical Committee 
frequently find that the vendor agrees to abide by the analysis of 
Professor Voelcker, and so, the purchaser being satisfied, there 
is no opportunity for further investigation. Two samples of 
cake, for instance, were submitted to Professor Voelcker ; one, 
stamped pure, contained seeds of some 20 different »veeds, and 
was made of very dirty seed. Another contained Castor-oil 
Beans ; but the purchaser wrote that he was in correspondence 
with the vendor, and did not wish to have any further analysis. 
The Committee have prepared the annexed forms of guarantee! 
which dealers in manures and feeding-stuffs may give to puM 
chasers. They will be supplied to applicants at a charge ofl 
\d. each, or 1a-. the set. J 
