352 



BOARD OF AGRICULTUKE. 



Valuation per ton of two thousand pounds 



ISG pounds of soluble phosphoric acid . 

 40 pounds of insoluble phosphoric acid 

 58.6 pounds of nitrogen . . .■ . 

 31.0 pounds of potassium oxide . 



S41 44 



Bradleifs Sea-FuwL 

 (Collected of Messrs. Sheldon & Newcomb, Greenlield, Mass.) 



IMoisture 



Organic and volatile matter 



Ash constituents 



Total phosphoric acid 



Soluble phosphoric acid . 



Reverted phosphoric acid 



Insoluble phosphoric acid 



Nitrogen 



Pota.ssium oxide 



Insoluble matter 



Valuation per ton of two thousand pounds 



103 pounds of soluble phosphoric acid . 

 24.4 pounds of reverted phosphoric acid 

 55.2 pounds of insoluble phosphoric acid 

 73.2 pounds of nitrogen 

 50 2 pounds of potassium oxide . 



Per cent. 



-11.26 



5595 



44.05 



12.13 



8.15 



1.22 



2.76 



3.66 



2 51 



4.95 



15 96 



Avimoniated Superphosphate of Lime. 



(Pivston Fertilizer Co. ; collected of Messrs. Spaulding & Co., Northampton, Mass.) 



Per cent. 



Moisture . . 13.30 



Organic and volatile matter 



Ash constituents 

 Total phosphoric acid 

 Soluble phosphoric acid . 

 Reverted phosphoric acid 

 Insoluble phosphoric acid 

 Nitrogen 

 Insoluble matter 



Valuation per ton of two thousand pounds 



190.8 pounds of soluble phosphoric acid 

 28.8 pounds of reverted phosphoric acid 

 40.8 pounds of insoluble phosphoric acid 

 47 6 pounds of nitrogen .... 



41.60 

 58 40 

 13.02 

 9.54 

 1.44 

 2.04 

 2 38 

 5.40 



S4() 31 



