344 



BOAED OF AGRICULTURE. 



Valuation per ton of two thousand pounds : — 



118 pounds of nitrogen, at 18 cents, .... $21 24 

 46.82 pounds of phosphoric acid, at 6 cents, . . . 2 69 

 35.94 pounds of potassium oxide, at 4^ cents, . . 1 53 



$25 46 



COCOA DUST. 



[Refuse from Cocoa Manufacture, sent from Boston, Mass.] 



Essential Mineral Constittients in 100 Parts of Cocoa Dust. 



Potassium oxide, . 2.11 



Calcium oxide, -63 



Magnesium oxide, traces 



Phosphoric acid, 1.34 



The material consisted of the inside and outside parts of 

 the cocoa bean, with some foreign matter. It was obtained 

 in the process of cracking and sifting the bean. The exami- 

 nation was made by request, to ascertain its fitness for man- 

 uring. Although its nitrogen percentage (2.3 per cent.) 

 compares well with many fertilizers in our market, it would 

 be, for economical considerations, more advisable to try the 

 cocoa dust as a fodder in place of oil-bearing seeds. The 

 reputation of the cocoa as a highly nutritive food for man 

 is too well established to doubt the efficiency of the above 

 described article as a fodder for some kind of farm stock. 



