Quarterly Reports of the Chemical Committee, 1887. 307 
Nottingliam, agents for Messrs. Alfred Denniss & Co., 191 High 
Street, Hull. The invoice was as follows: — 
" ciept ember 4, 1886. 
To 2 tons P. Lin. Cake | 7/17/G | 15/. 15s. Od. \ " 
In reply to Dr. Voelcker's iuquiiy, Mr. Wright said that the 
cake was sold to him as pure. A few days later he forwai-ded 
the following correspondence :— 
" Alfred Denniss & Co., 191 High Street, Hull : 
October 21, 1886. 
" Messrs. H. & F. Warhurst. 
" Deak Sirs, — ... 95 per cent, cakes have from 1 to 3 per cent, of 
sand in, according to the class of seed used. The finest Baltic Seed has, say, 
5 per cent, ash, of which about 1 per cent, is sand. E. J. seed-cakes of 
the finest quality about 7 per cent, ash, which contains about 2 to 3 per cent, 
sand. Of course, no sand would be added in manufacture of the cakes. 
Thus you see that sand is more or less in all cakes, and the percentage rises 
or falls accordmg to the price paid for the cake. 
" As to the term pure cake, that term has no definite meaning. It is a 
term of degree. The highest class cakes containing 95 per cent, purity are at 
the highest price, and, as the price declines, the percentage of purity does — 
there being 30s. diS'erence between K.G.'s and 95 per cent., but the delivery, 
we believe, sent to your friend mmj accidentally have been not quite up to the 
usual standard. The E. J. seed has pieces of earth here and there which 
are riddled out, but dust is left and this makes ash. 
" In all cakes not 95 per cent, the percentage of ash will be rather high — 
say in B.W., W.H., and B. 
" We shall be glad to have the further report your friend speaks of. Did 
he expect 95 per cent., think you ? — Yours faithfully, 
" A. Dexxiss & Co." 
" The K.G.'s are nice, very, to-day — new seed." 
" Alfred Denniss & Co., 191 High Street, Hull : 
October 22, 1886. 
" Messrs. H. & F. Warhmst. 
" Dear Sirs, — We think you will find the percentage of purity in the 
K.G.'s as high as in any other cake at the same price. We enclose analysis 
of a 95-per-cent. cake containing nearly 8 per cent, of ash, which would have 
at least 3 per cent, of sand. This by Dr. Voelcker, and the price is 8/. 5s. 
in Hull. If Dr. V. be told the price of the K.G.'s, we think he will say it 
is worth the money paid. 
" Will you please send us part of the cake analysed that we may have it 
tested, also copy of Voelcker's analysis and report ? He may have made an 
error, and any one who circulates erroneous reports we shall hold liable. If 
any error has been made in the delivery we shall be glad to take the cake 
back or make compensation, but the inferiority must first be tested by our- 
selves. — We are, yours trul}-, *' A. Denniss & Co." 
" Nottingham." 
The following letters passed : — 
" W. Wright, Esq. " December 1, 1886. 
''Dear Sir, — I am obliged for the correspondence sent me. I ought to 
tell you in reference to Messrs. Alfred Denniss & Co.'s letters, that my re- 
marks as to the cake being by no means pure, were not confined at all to the 
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