340 Quarterhj Reports of the Chemical Committee, 1885. 
in the mill with bruised wheat, should be used, and no linseed-cake, but alas ! 
it is easj' to order, but how difficult to get obedience ! — Believe me, yours 
faithfully, J. Forster." 
The following is the letter from the manufacturers : — 
" Major Forster. February 20th, 1885. 
" Sir,— Your bailiff, Mr. Kidd, called here this afternoon relative to the 
quality of the D linseed-cake supplied to you lately. He informed us that 
you had had a sample of it analysed, and it was reported on unfavourably, as 
to its purity, &c. We would point out to you that we did xiot represent it 
as being a j^erfectly pure cake, but knowing you had used some quantity of 
this mark of cake, we quoted a price for it on January 3rd last. 
" It is a cake of which we sell a larger proportion of than of any other 
mark, and as it is largely used by nearly all our customers, that is a sufficient 
proof of its feeding qualities. We have furnished Mr. Kidd with a sample of 
cake (mark D.G.). This we guarantee to be made from 95 per cent. East 
Indian linseed, the best that is imported. 
" If you will kindly have this sample analysed and approve of its quality 
we will supply the remainder of the quantity, as quoted on the 3rd January, 
of this description of cake at the price of 101. per ton, which is the relative 
difference in price (1?. per ton) between this mark and the D mark of cake. 
" We would at all times prefer to sell by sample, and will guarantee any- 
thing then sold to be equal to the sample it is sold by." 
This case shows the false economy of buying any thing of less 
than guaranteed purity. 
4. Mr. R. Fearnall, of Lea Hall, Aldford, Chester, sent, on 
February 17th, a sample of boiled bones bought at 6/. per ton 
for opinion as to purity. On Dr. Voelcker replying that they 
were not pure, and advising Mr. Fearnall to have them analysed, 
this was done. The analysis and report were : — - 
Water 17-01 
'Organic matter 18 '79 
Phosphate of lime 45*84 
Lime, sulphuric acid, chlorine, &c 16*54 
Insoluble siliceous matter 1 • 79 
100-00 ^ 
* Containing nitrogen 1-08 
Equal to ammonia 1*31 
" Dear Sir, — This is not a pure sample of boiled bones, but one which 
appears to have been treated with sulphuric acid, which, along with common 
salt, it contains in considerable quantitj'. A good sample of boiled bones 
should contain more phosphate of lime than this sample, which is, exclusive 
of carriage, not worth more than 4Z. 15s. jjer ton, or 5/. at the most. — Yours 
faithfully, 
" R. Fearnell, Esq. J. Augustus Voelckeb." 
Two tons had been purchased through Mr. Rowe Morris of 
Mr. Abraham Lloyd, of Standish Lower Ground, Wigan, Lan- 
cashire. 
