Quarterly Report of the Chemical Committee, March 1892. 127 
J. Maxwell, Esq. January 6, 1892, 
Drve Sie, — I send you the analysis of an average sample taken from 
seven pieces of cotton-cake recently sent me by you, the parcel being sealed 
F, C. L. This analysis shows a better result than the one made for you on 
December 11, but the quality of the cake is still low. All the seven pieces 
of cake were very dark-coloured, and four of them particularly so. Not one 
of the pieces was fresh or nice, nor what good cotton-cake should be. All 
the seven pieces had more or less cotton-wool in them, and of three I would 
say that the extent to which this occurred was highly objectionable. In one 
cake a long piece of thin rope was found, and in others lumps of cotton- 
wool were dotted throughout. — Yours faithfully, 
J. Augustus Voelceee. 
The following case shows how necessary it is, when purchasing 
rape-cake for feeding purposes, to stipulate that it be pure and fit 
for feeding : — 
2. Mr. E. W. Singleton, of Preston Deanery, Northampton, 
sent on January 8, 1892, a sample of rape-cake, of which he had 
bought 3 tons at 41 1 2s. 6d. per ton (and which was stated to con- 
tain from 9 to 10 per cent, of oil). 
Dr. Voelcker reported upon the cake as follows : — 
Moisture 
Oil . . 
* Albuminous compounds (flesh-forming matters) 
Mucilage, sugar, and digestible fibre 
Woody fibre (cellulose) 
* Mineral matter (ash) 
' Containing nitrogen .... 
^ Including sand .#•... 
January 14, 1892. 
. ll-06\ 
7-57 
31-75 
27-83 ■ 
9-90 
11-90' 
100-00 
. 5-08 
.- 4-85 
This cake is not only of poor quality, but it contains mustard-seed, and 
is therefore not fit to use for feeding purposes. Besides this it has nearly 
6 per cent, of sand. 
In correspondence it appeared that Mr. Singleton had written 
some few weeks before to ask about the best quality rape-cake for 
feeding purposes, and had received an analysis of some. Some'time 
subsequently Mr. Singleton ordered three tons of rape-cake, but did 
not specially say that it was to be for feeding purposes. 
3. Mr. S. J. Knight, of Landens, Horley, Crawley, sent on 
December 7, 1891, a sample of what had been offered to him, at a 
low price, as “ linseed-meal.’' The price quoted was 10^. lOtf. per 
ton. 
