Quarterly Reports of the Chemical Committee, 1883. 371 
This case illustrates the risk which is run by purchasers of 
low-priced rape-cake without a guarantee that it is a good 
feeding-cake, and not simply a manure-cake. 
2. A sample of linseed-cake, stamped " Pure " and sold at 
8Z. 5*. per ton, was sent for analysis on the 17th of January, 
1883, by Mr. R. Richardson, West Rainton, Fence Houses, 
county of Durham. 
This cake had the following composition : — 
Moisture 12-66 
Oil 7-27 
•Albuminous compounds 23-19 
Starch, mucilage, and digestible fibre . . . . 36-59 
Indigestible woody fibre 10-97 
fMineral matter (ash) 9-32 
100-00 
* Containing nitrogen 3-71 
t Including silica 4-78 
Although this cake was branded "Pure," it was adulterated 
with starchy mill-refuse, very poor in oil, and deficient in 
albuminous compounds. 
Two tons were bought from ]\Ir. Wm. Johnson, West Rain- 
ton, Fence Houses, county of Durham. 
3. Mr. John Dalton, Slenin^ford Park, Ripon, sent me a 
sample of oil-cake on the 10th of last December, which on 
analysis gave the following results : — 
Moisture 13-34 
Oil 9-83 
*Albuminous compounds 23-19 
Mucilage, starch, and digestible fibre .. .. 35*09 
Indigestible woody fibre 11-26 
tMineral matter (ash) 7-29 
100-00 
* Containing nitrogen 3-71 
+ Including sand 2-84 
The cake was made from badly screened linseed, and adulte- 
rated with starch V mill-refuse, and sold to Mr. Dalton as 
guaranteed pure. The contract was as follows : — 
Sold to John Dalton, Esq., Sleningford Park, 40 tons, j.c, pure linseed- 
cakes, to be delivered at Tanfield Station in 5-ton lots as required from the 
l)resent time until May 1st, 1883, the prices to be charged being 8?. 5s. per 
ton from now to September, and 8/. 15.?. from September to May, 1883. 
J. C. (for Carter and Son). 
On the 15th of December last a cake very similar in com- 
position and general character to the one mentioned above was 
sent to me by Mr. James Carter, Burton House, Bedale, as will 
be seen from the subjoined analvsis : — 
2 B 2 
