402 Quarterly Ueporl of the Chemical Committee, June, 1891. 
March 18, 1891. 
Moisture 13-75\ 
100-00 
Oil 13-90 
' Albuminous compounds (flesh-forming matters) . 2o"12 
Mucilage, sugar, and digestible fibre . . . 26'65 
AVoody fibre (cellulose) 8-13 
^ Mineral matter (ash) 12'4o/ 
• Containing nitrogen .... 4-02 
' Including sand . . . . • 5-75 
The cake is an impure one, containing, besides starchy ingredients in 
some quantity and also rape, nearly 6 peq|gfcit. of sand, which is highly 
objectionable. 
Upon being pressed for information Mr. Lester wrote : — " The 
agent has made a very considerable allowance on this cake. I had 
no guarantee as to the purity of it, so I do not wish any further steps 
taken in the matter." 
The following cases refer to dissolved bones. 
7. Capt. H. Heaton, of Stetchworth Park, near Newmarket, 
agent to Lord Ellesmere, sent on April 27, a sample of what had 
been described to him as "pure Dissolved Bones." On this the 
following report was given : — 
April 30, 1891. 
Moisture 9-2l\ 
^ Organic matter and water of combination . . ] 9'89 
Monobasic phosphate of lime .... 18'93 
Equal to tribasic phosphate of lime (bone phos- "\ /go g j x I joq-qo 
phate) rendered soluble by acid J ^ H 
Insoluble phosphates 11'46 
Sulphate of lime, alkaline salts, &c. . . . 37 '74 
Insoluble silicious matter 2'77/ 
' Containing nitrogen 2 04 
Equal to ammonia ...... 2'48 
This is not made altogether from i-aw bone and acid only, although it is 
a good manure. 
Twenty tons of this had been purchased at 71. per ton less* 5 per 
cent, delivered. 
The manufacturers in their circular described two different articles 
under the name of " pure Dissolved Bones," viz. : — 
Xo. 4. — Pure Dissolved Bones. — Made of steamed and raw bones dissolved 
with sulphuric acid. 
No. 4a. — Pure Dissolved Bones. — An exceptionally high-class article, 
made of raw bone meal only, dissolved with sulphuric acid, by a method 
recently discovered by us, which enables us to produce a dry and finely 
pulverised article without the use of any " drier." 
It is understood in the trade that " pure Dissolved Bones " 
shall consist of raw bones and acid only, and the term ought 
