338 



BOARD OF AGRICULTURE. 



m. 



Frank Coe's Ammoniated Superphosphate. 

 (Messrs. J. S. Clark & Sons, "Worcester, Mass.) 



Organic and volatile matter 

 Ash constituents 

 Moistui-e lost at 100° C. . 

 Total nitrogen .... 

 Total phosphoric acid 

 Phosphoric acid soluble in water 

 Reverted phosphoric acid . 

 Insoluble phosphoric acid 

 Insoluble matter, sand, &c. 



Valuation per ton of two thousand pounds : — 



61.8 pounds of nitrogen 



165.6 pounds of Soluble phosphoric acid . 

 23.6 pounds of reverted phosphoric acid . 

 55.6 pounds of insoluble phosphoric acid 



fl2 36 

 20 70 



2 12 



3 34 



S38 52 



IV. 



Bay-State Ammoniated Superphosphate. 



{Or. B.'Knowlton, Fitchburg, Mass.) 



Per cent. 



Organic and volatile matter 63.08 



Ash constituents 36.92 



Moisture lost at 100^ C 23.65 



Total nitrogen 2.61 



Total phosphoric acid 9.94 



Phosphoric acid soluble in water . . . .8.54 



Reverted phosphoric acid . . . . . -23 



Insoluble phosphoric acid 1.17 



Insoluble matter, sand, &c 1.33 



Valuation per ton of two thousand pounds : — 



52.2 poimds of nitrogen 

 170.8 pounds of soluble phosphoric acid . 

 4.6 pounds of reverted phosphoric acid 

 23.4 pounds of insoluble phosphoric acid 



V. 



. $10 44 

 . 21 35 



42 

 . 1 40 



$33 61 



Ammoniated Superphosphate of H. B. Arnold, Boston, Mass. 



Per cent. 



Organic and volatile matter 62.46 



Ash constituents 37.54 



