334 Quarterly Reports of the Chemical Committee, 1886. 
Mr. Walker wrote subsequently, saying that the agent had 
shown him a letter from the manufacturer stating that the cake 
would not be injurious, but that it was not crushed so finely as 
some, and mentioned the kind of seed the cake was made 
of (Smyrna). The matter was settled by the agent making a 
reduction. 
7. Mr. J. Body, of Wittersham, Kent, sent on May 28th a 
sample of nitrate of soda. 
On analysis this gave the following results : — 
" June 8th, 1886. 
Water 2-75 
Chloride of sodium 28 • 16 
Other impurities "57 
Pure nitrate of soda 68 * 52 
100-00 
" A sample adulterated with 28 per cent, of common salt, 
" J. Augustus Voelckeb." 
In answer to inquiries, Mr. Body wrote : — 
" July 10th, 1886. 
" Dear Sir, — With regard to the nitrate of soda you analysed for me 
on the 8th June, it was a small lot of 15 cwt. sent for hy my bailiff ; it is the 
first lot I ever had from this firm, and it will be the last, but I have promised 
not to go forward in the matter, so cannot give up his name. — Tours faith- 
fully, " John Body, Jun." 
« Dr. J. A. Voelcker." 
8. Mr. D. Davison, of Sedgefield, Ferry Hill, sent on 
June 2nd a sample of sewage manure. The quantity purchased 
was 5 tons 16 cwt., in bags, at 21. per ton, besides carriage, 
Mr. Davison's intention being to use it for swedes. This was 
invoiced as " Organic manure," and was bought from Messrs. 
Hamilton & Co., 118, High Street, Wandsworth, S.W., the 
manufacturers. A circular sent to Mr. Davison described the 
" Organic manure " as " a dry powder manufactured ^rom 
London sewage, «&c." . . . "A manure with the highest 
fertilising properties, and far superior to other manures. It 
is equalled only by the celebrated Peruvian guano, which costs 
six times as much. It is unequalled for cereals, grass, roots, 
hops, &c." ..." Where once used the beneficial effects are 
visible for several seasons." ..." The organic manure is the 
latest advance made in manures. It contains a large percentage 
of organic matter, ammonia, and phosphates." The following 
analysis was also given in the circular : — 
