Quarterly ReporU of ihe Chemical Committee, 1889. 771 
10. Mr. E. W. Ward, of Crickheath, Oswestiy, forwarded 
on February 12, 1889, a sample of linseed-cake, sold to him as 
pure, costing 9Z. 2s. Qd. per ton delivered. The analysis of this 
was : — 
"February 21, 1889. 
Moisture 1275 
Oil 13-47 
* Albuminous compounds (flesli-forming matters) . 21-38 
Mucilage, sugar, and digestible fibre , , . 34*50 
Woody fibre (cellulose) 7-36 
-Mineral matter (ash) . • • < t . 10 -54 
100-00 
' Containing nitrogen 3-42 
- Including sand 5-80 
"An impure calre, having nearly 6 per cent, of sand, besides a great 
deal of starchy admixture and seeds of polygonum. In consequence the 
nitrogen is very low. " J. Augustus Voelckee." 
Mr. "Ward said he had only purchased one ton, being per- 
suaded to try it by a friend. He refused to give more parti- 
culars. 
July 1889. 
The Committee call attention to a new form of adulteration 
of linseed-cake. This consists in the use of the refuse from 
saccharine manufactories, which refuse is mixed with the lin- 
seed and crushed along with it. The presence of this adulterant 
is recognisable by the higher percentage of mineral matter (ash) 
in cakes which contain it, and this ash on examination is found 
to consist largely of sulphate of lime (gypsum). 
1. Mr. W. Grundon, of Grimthorpe, Pccklington, Yorkshire, 
sent on February 13, 1889, a sample of linseed- cake, represent- 
ing a two-ton lot purchased at 9Z. \Qs. per ton, carriage paid (5s. 
discount for cash in a month), from Messrs. Robert Stephenson 
& Son, Hull Bridge, Beverley, who wei'e the manufacturers. 
Mr. Grundon stated that the order was given for two tons of 
pure linseed-cake. Formerly the manufacturers had branded 
their cake " Pure " ; but recently, owing to the Merchandise 
Marks Act, they ceased to do so ; at the same time they stated 
that they should continue to supply linseed-cake of the first 
quality and purity. Mr. Grundon accordingly wished to be 
informed whether what was now supplied to him was pure linseed- 
cake of the best quality. The following analysis was returned : — 
