COMMERCIAL FERTILIZERS. 



371 



Ptire Ground Bone Phosphate. 



(Of A. L. Ames, Peabody, Mass.) 



Moisture, .... 

 Organic and volatile matter, 

 Ash constituents. 

 Total phosphoric acid, 

 Soluble phosphoric acid, . 

 Reverted phosphoric acid. 

 Insoluble phosphoric acid, 

 Nitrogen, .... 

 Insoluble matter. 



Per cent. 



7.04 



49.23 



50.78 



16.18 



3.96 



3. .56 



8.65 



8.87 



1.37 



Valuation per ton of two thousand pounds : — 



78.2 pounds of soluble phosphoric acid, 

 71.2 pounds of reverted phosphoric acid, 

 173 pounds of insoluble phosphoric acid, 

 77.4 poimds of nitrogen, . ^ . 



$15 06 



Bradley^s Grass Seeding Fertilizer. 



(Collected by Messrs. Sheldon & Newcomb, Greenfield, Mass.) 



Per cent. 



Moisture at 100° C, 9.31 



Organic and volatile matter, 43.37 



Ash constituents, 50.73 



Total phosphoric acid, . 14.32 



Soluble phosphoric acid, 7.09 



Reverted phosphoric acid, 2.43 



Insoluble phosphoric acid, 4.80 



Nitrogen, 3.00 



Potassium oxide, 4.00 



Insoluble matter, 3.97 



Valuation per ton of two thousand pounds : — 



141.8 pounds of soluble phosphoric acid, 

 48.6 pounds of reverted phosphoric acid, 

 96.0 pounds of insoluble phosphoric acid, 

 60.0 pounds of nitrogen, .... 

 80.0 pounds of potassium oxide, . 



$17 73 



4 37 



5 76 

 14 40 



4 00 



$16 26 



