Reports of the Chemical Committee. 
289 
havinor acquired a world-famous reputation as one of the best 
and cheapest tillages, and invites his friends and all consumers 
to an inspection of the numerous testimonials with which he has 
been favoured. He likewise gives an analysis, of which the 
following is a copy : — 
Analysis of Blood Manure. 
Medical Institution, Sheffield. 
A sample of artificial manure, received from Mr. Holman, was found, ou 
aual3'sis, to contain in 100 parts : — 
Moisture and organic matters, containing 17"72 of ) 
ammonia, equivalent to 14'58 of nitrogen .. j 
Insoluble silicate and sulphate of lime ll'OO 
Phosphate of lime, equivalent to 4'34 phosphoric) g.^Q 
acid J 
Oxides of iron and alumina ... 2*35 
Carbonate of lime 5'00 
Carbonate of magnesia 1*80 
Alkaline salts (chlorides and sulphates) 4"45 
Alkaline sails (soluble silicates) 1"60 
100-00 
March 1, 1845. (Signed) W. Binglet, Ph. D., F.C.S. 
In this analysis, the manure is represented to contain more 
ammonia than the best samples of Peruvian guano. Supposing 
the sample analysed by Dr. Bingley contained only 10 per cent, 
of moisture, and not 32, like the sample sent to me by Mr. Read, 
I am at a loss to understand how the remaining 54 4 of organic 
matter could have yielded 17*72 of ammonia. 
The amount of the richest available nitrogenous organic matter, 
or even of pure sulphate of ammonia, produces considerably less 
ammonia than 17*72 per cent. However, presuming the analysis 
to be correct, the question which would naturally be asked by 
any intelligent farmer who knows something of the market price 
of fertilizing materials is : Is it probable that a manure manu- 
facturer will sell an artificial manure at 6/. when he can get 
for the ammonia alone, which is represented to be present in 
a ton of the manure, over lOZ. ? 
Attention is directed to this analysis, because in many instances 
farmers are led away by printed analyses, which many regard as 
a sufficient guarantee of the good quality of the manure to which 
they refer. Whenever an analysis is shown, when an artificial 
manure is offered for sale, and such an analysis should prove to 
be satisfactory, we would advise the intending purchaser to obtain 
in the first place a strtement in writing that the bulk of ths 
manure, on delivery, shall be equal in composition with that 
given in the printed analysis; and, in the next place, he should 
draw from the various parts of the bulk several pounds of the 
YOL. VII. — S. S. U 
