292 



BOARD OF AGRICULTURE. 



Dry Pure Ground Fish. 



(Williams, Clark & Co., New York; collected of Slate & DeWoIf, Greenfield, 



Mass.) 



Guaranteed composition : Ammonia, 10 to 12 per cent, 

 (equivalent to nitrogen, 8 to 10 per cent:) ; bone phosphate, 

 13 to 16 per cent, (equivalent to phosphoric acid, 6 to 7.3 

 per cent. ) . 



Moisture at 100° C, 

 Total phosphoric acid, . 

 Reverted phosphoric acid, 

 Insoluble phosphoric acid. 

 Nitrogen, 

 Insoluble matter, 



Per cent. 



12.33 

 8.95 

 4.57 

 4.38 

 7.50 

 1.65 



Valuation per two thousand pounds : — 



91.4 pounds of reverted phosphoric acid, 

 87.6 pounds of insoluble phosphoric acid, 

 150. pounds of nitrogen, .... 



. $8 23 



3 94 



. 30 00 



$42 17 



Quinnipiac Dry Ground Fish, 

 (Collected of D. A. Horton, Northampton, Mass.) 



Guaranteed composition : Total phosphoric acid, B to 8 

 per cent. ; soluble and reverted phosphoric acid (available), 

 2 to 4 per cent. ; nitrogen, 7 to 9 per cent. ; ammonia, 9 to 

 11 per cent. 



Valuation per two thousand pounds : — 



34. pounds of soluble phosphoric acid, 

 58.6 pounds of reverted phosphoric acid, 

 75.4 pounds of insoluble phosphoric acid, 

 164.6 pounds of nitrogen, .... 



$44 98 



