338 



BOAED OF AGRICULTURE. 



Valuation per ton of 2,000 pounds. 



190.0 pounds of soluble phosphoric acid, . 

 74.2 " of reduced " " . .. . 

 14 " of insoluble " "... 

 32 " of nitrogen, 



Vn. — ^Ammoniated Superphosphate. 



$39 87 



(G. F. Wilson's, Providence, R. I. Collected of Messrs. Breck & Co., Boston, Mass.) 



Total phosphoric acid, 



Soluble 



Reduced " " 



Insoluble " " 



Nitrogen, 



Moisture, 



10.82 per cent. 



3.20 



4.74 



2.88 



2.70 

 28.11 



Valuation per ton of 2,000 pounds. 



64.0 pounds of soluble phosphoric acid, 

 94.8 " of reduced " "... 

 57.6 " of insoluble " "... 

 54.0 " of nitrogen, 



$8 00 

 9 48 

 2 88 



13 50 



$33 86 



VIII. — Patent Ammoniated Superphosphate. 



(Messrs. W. L. Bradley & Co., Boston, Mass. Collected of Ml-. J. D. Lovell, 



Valuation per ton of 2,000 pounds. 



140.8 pounds of soluble phosphoric acid, 

 10.8 " of reduced " "... 



100.4 " of insoluble " "... 



50.0 " of nitrogen " "... 



$36 20 



