COMMERCIAL FERTILIZERS. 



375 



L. B, Darling'^s Animal Fertilizer. 



(Collected of Messrs. Pan-ker & Gannett, Boston, Mass.) 



Per cent. 



Moisture, 7.96 



Organic and volatile matter, 48.49 



Ash constituents, 50.61 



Total phosphoric acid, 16.20 



Soluble phosphoric acid, 49 



Reverted phosphoric acid, 5.22 



Insoluble phosphoric acid, 9.49 



Nitrogen, 5.79 



Potassium oxide, 4.74 



Insoluble matter, 2.66 



Valuation per ton of two thousand pounds ; — 



9.8 pounds of soluble phosphoric acid, . 

 104.4 pounds of reverted phosphoric acid, 

 189.8 pounds of insoluble phosphoric acid, 

 115.8 pounds of nitrogen, 

 94.8 pounds of potassium oxide, 



$1 23 



9 40 



11 39 



27 79 



4 74 



$54 65 



E. Frank Coe^s Ammoniated Bone Superphosphate. 



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



Per cent. 



Moisture at 100° C. 11.49 



Organic and volatile matter, 45.96 



Ash constituents, 54.04 



Total phosphoric acid, ....... 13.07 



Soluble phosphoric acid, 7.62 



Reverted phosphoric acid, 1.26 



Insoluble phosphoric acid, 4.22 



Nitrogen, 2.02 



Valuation per ton of two thousand pounds : — 



152.4 pounds of soluble phosphoric acid, . 

 25.2 pounds of reverted phosphoric acid, 

 84.4 pounds of insoluble phosphoric acid, 

 40.4 pounds of nitrogen, .... 



.$19 05 

 . 2 27 

 . 6 07 

 . 9 70 



$36 09 



