296 



BOARD OF AGRICULTURE. 



Valuation per two thousand pounds : — 



44.2 pouads of soluble phosphoric acid, 

 42.6 pounds of reverted phosphoric acid, 

 31.6 pounds of insoluble phosphoric acid, 

 51.2 pounds of potassium oxide, 

 98.8 pounds of nitrogen, 



14 42 

 3 83 



1 42 



2 18 

 19 76 



$31 61 



Miles' Fish and Potash (XX). 

 (Collected of D. J. Wright, Northampton Mass.) 



Guaranteed composition : Soluble and reverted phos- 

 phoric acid (available), 5 to 8 per cent. ; potassium oxide, 

 4 to 6 per cent. ; ammonia, 4 to G per cent, (equivalent to 

 nitrogen, 3.30 to 5 per cent.), 



Moisture at 100° C, 

 Total phosi^horic acid, . 

 Soluble phosphoric acid, 

 Reverted phosphoric acid. 

 Insoluble phosphoric acid. 

 Potassium oxide, 

 Nitrogen, 

 Insoluble matter. 



Valuation per two thousand pounds : — 



97.2 pounds of soluble phosphoric acid, 

 .8 pound of reverted phosplioric acid, 

 96.8 pounds of insoluble phosphoric acid, 

 61. pounds of potassium oxide, . 

 68. pounds of nitrogen, .... 



$30 34 



Fish and Potash. 



(Quinnipiac Fertilizer Co., New Haven, Conn; collected of Robinson & Brooks, 



Pahner, Mass.) 



Guaranteed composition : Nitrogen, 3^ to 4^ per cent, 

 (equivalent to ammonia, 4 to 5 per cent.) ; soluble and re- 

 verted phosphoric acid (available), 3 to 5 per cent.; total 

 phosphoric acid, 5 to 7 per cent. ; potassium oxide, 3 to 

 5 per cent. 



Moisture at 100° C, 



Nitrogen, 



Total phosphoric acid, . 



Soluble phosphoric acid, 



Revei'ted phosphoric acid, 



Per cent. 



26.43 

 4.26 

 7.31 



3.13 



