342 Quarterly Reports of the Chemical Committee, 1886. 
15. Mr. G. W, Weston, of Hemblington, Norwich, sent on 
October 26th a sample of linseed-cake. Of this he had pur- 
chased four tons on October 5th, at 11, lis. %d. per ton. This 
cake was supposed to be a Russian cake. It was recommended 
by the vendors as being good and pure, and was stamped : — 
HARBUEGER 
OELFABRIK 
F. THORL. 
Dr. Voelcker's analysis and report were as follows : — 
" November 1886. 
Moisture 13"15 
Oil 9-03 
•Albuminous compounds (flesh-forming matters) 24 • 37 
Mucilage, sugar, and digestible fibre 34*54 
Woody fibre (cellulose) 12 "44 
Mineral matter (ash) 6*47 
100-00 
* Containing nitrogen 3 • 90 
•* This is a cake of rather low quality and is not pure. It contains some 
amount of rape-seed. Was it sold to you as " pure " ? 
" J. Augustus Voelcker." 
No guarantee had been given in this case. 
16. Mr. H. Rogers of Cheswell Grange, Newport, Salop, 
sent on November 9th a sample of linseed-cake for opinion of 
genuineness, describing it as a sample of " City " oil-cake, of 
which four tons had been ordered at 8/. per ton, delivered. 
Dr. V oelcker wrote in reply : — 
" Henry Rogers, Esq. November 12th, 1886. 
" Dear Sir, — My opinion of the linseed-cake you have sent me is that it 
is a very dirty and impure cake. If you have purchased any of it, I would 
advise you to have a full analysis of it made, as it seems to me a decidedly 
Lad cake. — Yours faithfully, "J. Augustus Voelcker." 
The following letters passed : — 
" From Henry Rogers, Cheswell Grange, Newport, Salop. 
" November 22nd, 1886.- 
" I returned the oil-cake to agent, so shall do nothing more with it. 
" H. R." 
" November 26th, 1886. 
"Dear Sir, — You did well in refusing to take the cake. I am asking 
you if you would kindly fill up the enclosed form and obtain the particulars ; 
