828 



BOARD OF AGRICULTURE. 



The composition of this material depends, to a considerable 

 extent, on the degree in which the oil has been removed : 

 the same rule applies to the rate of its action as a fertilizer. 

 The percentage of nitrogen is reported as high as 7.33 per 

 cent. The wholesale price is at present about eighteen dol- 

 lars in the New- York and Boston markets. Large quantities 

 have been sent for years to England. Its good qualities as 

 a fertilizing material begin to be understood at home ; and 

 considerable quantities are sold at our Atlantic seaport 

 towns for home consumption. The pomace ought to be at 

 once ploughed under. The best time is in the fall. 



Fine-ground Fish. 

 (Sample Bent on by a dealer in Boston.) 



Organic and volatile matter 

 Ash constituents 

 Moisture lost at 100° C. . 

 Phosplioric acid in ash 

 Nitrogen in organic matter 

 Fat in total matter . 

 Sand, &c. 



Per cent. 



81.58 

 18.42 

 14.95 

 6.97 

 8.16 

 9.16 

 1.5a 



Valuation per ton of two thousand pounds 



139.4 pounds of phosphoric acid 



163.2 pounds of nitrogen .... 



n. 



Fine-ground Fish. 

 (Collected of H. Phelps, Northampton, Mass.) 



Organic and volatile matter 

 Ash constituents 

 Moisture lost at 100° C. . 

 Phosphoric acid in ash 

 Nitrogen in organic matter 

 Sand, &c. 



Valuation per ton of two thousand pounds : — 



178 pounds of phosphoric acid .... 

 138.6 pounds of nitrogen ..... 



$6 96 

 32 64 



$39 61 



Per cent. 



79.27 



20.73 



22.00 



8.90 



6.93 



.83 



$8 90 

 27 72 



$36 62 



