358 PHYSIOLOGY AT THE FARM. 



cake. Decorticated cotton-cake contains a very high and 

 much larger percentage of flesh-forming matters than linseed- 

 cake. This circumstance suggests that cotton-cake may pro- 

 bably be given with great advantage to young stock and to 

 dairy cows. Again, as by far the largest proportion of the 

 nitrogen of food is not assimilated in the system, but passes 

 away with the excrements of animals, the dung produced by 

 stock fed upon cotton-cake will be found particularly valuable. 

 The ash of cotton-cake is rich in bone materials, and amounts 

 to about the same quantity as that contained in other oilcakes. 

 On the whole," he says, " I am inclined to think, as far as I am 

 able to judge on the strength of the preceding f analytical in- 

 dications, that the best decorticated cotton-cake possesses 

 theoretically about the same nutritive value as linseed-cake. 

 Cotton-cake of average quality is probably somewhat inferior 

 to linseed-cake of average composition." 



The following is the average drawn from the analysis of the 

 seven samples above referred to : 



Water, ...... 9.28 



Oil, ....... 16.05 



Albuminous compounds or flesh-forming matters,* 41.25 

 Gum, mucilage, and digestible fibre (lieat-producing 



substances), ..... 16.45 



Celluline (indigestible fibre), . . . 8.92 



Mineral matters (ash), .... 8.05 



100.00 



* Containing nitrogen, .... 6.58 



Average composition of the ash of decorticated cotton- 

 cake : 



Potash, ..... 37.045 



Soda, ...... none. 



Chloride of sodium, .... none. 



Lime, ...... 3.750 



Carry forward, . 40.795 



