COMMERCIAL FERTILIZERS. 



531 



Per cent. 



Moisture at 100° C, 11.70 



Total phosi^horic acid, 9.62 



Soluble phosphoric acid, 6.02 



Reverted phosphoric acid, 3.22 



Insoluble phosphoric acid, .38 



Potassium oxide, 3.56 



Nitrogen, 2.08 



Insoluble matter, 5.69 



Valuation per two thousand pounds : — 



120.4 poimds of soluble phosphoric acid, 

 64.4 pounds of reverted phosphoric acid, 

 7.6 pounds of insoluble phosphoric acid, 

 71.2 pounds of potassium oxide, . 

 41.6 ijounds of nitrogen, 



$25 89 



Adams' Market Bone Fertilizer for Potatoes. 

 (Collected of C. W. Shaw, Springfield, Mass ) 



Guaranteed composition : Total phosphoric acid, 9 to 11 

 per cent, ; available phosphoric acid, 8 to 10 per cent.^; po- 

 tassium oxide, 4 to 5 per cent. ; nitrogen, 3 to 4 per 

 cent. 



Per cent. 



Moisture at 100° C, 11.16 



Total phosphoric acid, 8.48 



Soluble phosphoric acid, 2.23 



Reverted phosphoric acid, 2.43 



Insoluble phosphoric acid, 3.82 



Potassium oxide, 4.09 



Niti'ogen, 3.78 



Insoluble matter, 1.56 



Valuation per two thousand pounds : — 



44.6 pounds of soluble phosphoric acid, 

 48.6 pounds of reverted phosphoric acid, 

 76.4 poimds of insoluble phosphoric acid, 

 81.8 pounds of potassium oxide, . 

 75.6 pounds of nitrogen, 



$26 22 



