Quarterly Report of the Chemical Committee , Dec., 1893 . 793 
described as “ Bombay Oil Cake,” and not as “ Linseed Cake.” Dr. 
Voelcker examined the cake and reported as follows : — 
“ This is not genuine linseed cake, and the oil is not pure linseed 
oil.” 
After sending this report, Dr. Voelcker made further investi- 
gations, and, as the result of these, ascertained that though the 
cake was free from any admixture of foreign seeds, and was to 
all outward appearance a pure one, the oil contained in it was 
almost entirely rice oil. Of the 1 8 '5 per cent, of oil shown in the 
analysis, less than 1| per cent, was linseed oil, and the remainder 
rice oil. On the purchaser complaining to the merchants, the 
latter said that they never represented the cake to be linseed cake 
at all, and that at the price charged it could not possibly be per- 
fectly pure linseed cake. 
Oil Cake supplied when Linseed Cake ordered . — The two follow- 
ing cases are mentioned as illustrating the necessity of taking care 
not only to order linseed cake, but to see that the delivery is in- 
voiced accordingly, and that the subterfuge of invoicing the cake 
as oil cake is not adopted, in order to avoid responsibility. 
A member of a firm of London solicitors gave an order to a iirm 
of cake merchants for 2 tons of linseed cake. When, however, 
this was delivered, the invoice described the cake, not as linseed 
cake, but as oil cake. A sample being sent to Dr. Voelcker, he 
reported as follows : — 
Moisture 
Oil 
1 Albuminous compounds (flesh-forming matters) 
Mucilage, sugar, and digestible fibre 
Woody fibre (cellulose) 
3 Mineral matter (ash) 
1 containing nitrogen ..... 
2 including sand ..... 
July 20, 189 
1207 
707 
2(310 
37-2o 
8-43 
8 00 / 
^ 100 00 
419 
3 19 
A cake not only low in quality, when judged by the analytical results, 
but containing nearly as much impurities, I should judge, as there is 
linseed. Rape is present in large quantities, also cockle seed, spurrey, 
polygonum, mustard, and quite a collection of other weed seeds, in addition 
to over 3 per cent, of sand. Surely such a cake was never offered as 
linseed- cake. 
Upon the purchaser complaining, the merchants said that they 
would write to the makers of the cake at Hull, and in the end they 
admitted that they did not invoice the cake as “ Linseed Cake,” in 
order to “ avoid liability in case the crusher used impure linseed.” 
In another case of the same kind a sample of linseed cake was 
sent, the price of which was 81. 17 s. G d. per ton delivered. Five 
tons of the cake had been purchased. 
