42G Comj)osition and Nutritive Value of Cotton-cake. 



jority of the thin cakes, which seems to indicate that more heat 

 has been employed in pressing the thick cake. 



3. Ordinary Cotton-cake made from the whole Seed. 



Cake made of the whole cotton-seed presents a much less 

 inviting appearance than the thin cake ; it has a dark-brown 

 colour, is full of hard, dark-coloured seed-shells, is not liked so 

 much by cattle as thin cake, and is altogether a cake of inferior 

 quality. 



Some of this cake is prepared in England from imported, 

 cotton-seed. The English pressed cake is better than foreign 

 made cake of the same kind. Three samples of this cake fur- 

 nished on analysis the following results : — 



Composition of Oedinaey Cotton-cake made op Whole Seed. 



compounds (flesh - forming 



Moisture 

 Oil .. , 

 *" Albuminous 

 principles) 

 Gum, mucilage, sugar, and digestible fibre\ 



(heat-producing compounds) 

 Indigestible woody fibre 

 t Mineral matters (ash) . . 



11-46 

 6-07 



* Containing nitrogen .. 



t Containing sand 



, , earthy phosphates 



. , alkaline salts . . 



On comparing the composition of these cakes with the average 

 composition of decorticated cake it will be seen : — 



1. That the proportion of oil in the common cake is very 

 much smaller thail in the decorticated cake. The amount of oil 

 is in reality inconsiderable, since most other oil-cakes, such as 

 linseed, rape, poppy, and others, contain a good deal more fatty 

 matter. 



2. In decorticated cotton-cake there is a much higher per- 

 centage of albuminous compounds. 



3. On the other hand, the proportion of indigestible fibre in 

 ordinary cotton-cake is far more considerable than in decorticated 

 cake. 



Common cotton-cake is sold at a lower price than the decor- 

 ticated cake, but, considering the inferior character of the former, 

 its lower price offers little inducement to intending purchasers. 

 A ton of the best decorticated cake, I am inclined to think, is 

 worth quite as much as two tons of the inferior cake made of the 



