20 
Pure and Mixed Linseed- Cakes. 
4. Beecli-nut-Cake. — Beech-nut-cake is poor in oil anfl albu- 
minous compounds, and abounds in the husk, a representation of 
F' 15 External ^^^^^ under the microscope is here give^i, 
?' ' /• T> 7 . A sample of beech-nut-cake on analysis 
layer of Beech-nut ^ c ^^ • - 
l^^gj^g^ gave the following result : — 
^W||i^>>^ Composition of BeecJi-nut-CaJce. 
■ Moisturu 11-44 
:rw^\ .W-^ Oil 5-22 
: *Albumiuous compounds (flesh-) jS-Rl 
^ forming matter) ) 
Mucilage, sugar, and digestible fibre 36 • 17 
Woody fibre (cellulose) .. .. 23 '52 
t Mineral matter (ash) 4 '84 
:i^iVtia>^ 100-00 
X 70 Diameters. * Containing nitrogen .. .. 3-01 
t (..ontaining sand .. .. '62 
I have repeatedly found beech-nut-cake in adulterated lin- 
seed-cake. 
The husks of beech-nuts contain a volatile narcotic principle 
called fagin, which is said to be the cause of the poisonous effects 
that are occasionally observed when beech-nut-cake is given to 
horses and cattle, 
5. Hemp-Cake. — This cake is wholesome and nutritious, and 
notwithstanding a high percentage of woody fibre (due to the 
hard, shining shell of hemp-seed), it is fully as rich in nitrogen 
as the best linseed-cake: — 
Composition of Hemp-Cake. 
Moisture 11-59 
Oil 7-23 
* Albuminous compounds (flesh-forming matters) .. 33-50 
Mucilage, sugar, and digestible fibre 15-56 
Woody fibre (cellulose) 23-74 
t Mineral matter (ash) 8-38 
100-00 
* Containing nitrogen 5-36 
t Containing sand 2*14 
I have found hemp-seed only on two or three occasions in 
adulterated linseed-cakes, 
0. Cocoa-nut- Cake (Cocas nucifera). — Cocoa-nut-cake, or poo- 
nac, or the press refuse from the manufacture of cocoa-nut oil, 
IS a whitish-looking cake, interspersed with particles to which 
the dark reddish brown and black epidermis of the cocoa-nut 
kernel adheres. 
It possesses the characteristic taste and smell of cocoa-nut oil, 
and frequently the oil left in the cake is rancid. 
