Quarterly Reports of the Chemical Committee, 1888. 355 
This case shows the necessity of having a guarantee of 
purity as well as an analysis, and that the figures of the latter 
are not to be taken alone. 
2. Mr. E. Bosworth, of The Firs, Castle Bromwich, near 
Birmingham, sent on October 21, 1887, a piece of linseed-cake, 
out of a 4-ton lot, for which he paid Ql. 10s. a ton. It was 
purchased from a dealer, the makers being Messrs. J. & 
J. Stephenson, of 38 High Street, Hull. The cakes were 
invoiced as "4 tons 
+ pure linseed-cake." Dr. Voelcker's 
report was : — 
" October 27, 1887. 
Moisture 12-94 
Oil . ; : 973 
1 Albuminous compounds (flesh-forming matters) . 25-00 
Mucilage, sugar, and digestible fibre . , . 35-56 
Woody fibre (cellulose) 9-73 
^ Mineral matter (ash) 7-04 
10000 
' Containing nitrogen • . . . . 4-00 
2 Including sand . , . . . . 2-39 
" This is an impure cake, containing rape in quantity, also cockle, poly- 
gonum, and abundant starchy impurity. " J. Augustus Voelckbk." 
The following correspondence passed between the vendor and 
the makers with reference to the cake : — 
"Messrs. J. & J. Stephenson, Hull. "November 9, 1887. 
"Gentlemen, — I enclose a copy of Dr. Voelcker's analysis of the cake 
that was sent to Castle Bromwich the 3rd ult., and I think you must admit 
that my customer had just cause for complaint, " " 
" "November 10, 1887. 
" Dear Sie, — Yours with copy of analysis duly received, and we are not 
at all prepared to admit what you suggest. We may however say that we 
neither buy nor use cockle, and are unacquainted with polygonum. . . . We 
have been so pressed with business lately, and have also had a breakdown of 
machinery which has caused a little delay. — Youi-s truly, 
"J. & J. Stephenson." 
" Messrs. J. & J. Stephenson, Hull. " November 11, 1887. 
" Gentlejien, — Yours of yesterday to hand. I do not say that you use 
cockle and polygonum knowingly, but it is most certainly in the linseed." 
" Messrs. J. & J. Stephenson, Hull. " November 16, 1887. 
" Gentlemen, — In reference to the cake sent to Castle Bromwich, Dr. 
Voelcker says that it ' is an impure cake containing rape in quantity . . . 
and abundant starchy impurity,' and my customer wants an allowance. 
Your Mr. Moore distinctly told me, and impressed it upon me, that your 
cake would pass Dr. Voelcker, What are you going to do in the matter ? 
h A. 'i 
