336 
Annual Report of the Consulting Chemist for 1881, 
which the display of good business habits would often prevent 
losses. This want of business habits probably explains the fact 
that chemical analyses, so well-calculated to guard purchasers of 
manures against losses or unfair dealings, are sometimes made 
the instruments of deception on the part of manure-dealers. 
Advantage of buying Artificial Manures by Analysis. — The 
following are fresh illustrations of numerous other cases of the 
advantage of buying manures by analysis, which have been 
brought under my notice during the last twelve months. 
A member of the Society sent me three samples of manure : 
one, a special quality of dissolved bones, guaranteed to contain 
40 per cent, of phosphate and 2 per cent, of ammonia, price 
8/. 7s. 6<f. per ton, subject to discount for cash ; the second 
sample was turnip manure, guaranteed to contain 20 to 21 per 
cent, soluble phosphate and 2i to 3 per cent, of ammonia, price 
8/. per ton, less discount for cash. No. 3 was a sample of 
Peruvian guano, guaranteed to contain 28 to 30 per cent, phos- 
phates and 12 per cent, ammonia, price 14Z. pei ton, nett cash. 
The following is the composition of these three manures : — 
Special 
Dissolved 
Bones. 
Turnip 
Manure. 
•Organic matter and water of combination 
Equal to tribasic phosphate of lime (bone phos-\ 
9-20 
28-76 
7-99 
(12-5) 
19-01 
32-74 
2 30 
12- 40 
20-58 
13- 34 
(20-89) 
7-24 
41-43 
5-01 
100-00 
100-00 
2-24 
2-72 
1-52 
1-84 
Peruvian Guano. 
Moisture 6-30 
•Organic matter and ammoniacal salts 27*05 
Phosphate of lime 16-05 
t Alkaline salts 13-06 
Insoluble siliceous matter 37-54 
100-00 
♦Containing nitrogen C-33 
Equal to ammonia 7 - C!) 
•fContaining phosphoric acid 2-42 
Equal to tribasic j)lio8phate of lime .. . . 5-28 
Total percentage of pliosphoric acid .. .. 9-77 
Equal to tribasic pliosphate of lime .. .. 21-33 
