COMMERCIAL FERTILIZERS. 



353 



Bone Fertilizer. 

 (Sent by A. L. Amos, Esq., Peabody, Mass.) 



Moisture at 220° F. 

 Organic and volatile matter 

 Ash constituents 

 Total pliosplioric acid 

 Soluble phosphoric acid . 

 Reverted phosphoric acid 

 Insoluble phosphoric acid 

 Nitrogen 

 Insoluble matter 



Valuation per ton of two thousand pounds 



162.6 pounds of soluble phosphoric acid . 

 35 ■ pounds of reverted phosphoric acid 

 62 2 pounds of insoluble phosphoric acid 

 92.8 pounds of nitrogen .... 



MitchelVs Standard Phosphate. 

 (Collected of Messrs. Rice Brothers, Worcester, Mass.) 



Moisture 



Organic and volatile matter 



Ash constituents 



Total phosphoric acid 



Soluble phosphoric acid . 



Reverted phosphoric acid 



Insoluble phosphoric acid 



Nitrogen 



Potassium oxide 



Insoluble matter 



Valuation per ton of two thousand pounds 



197 pounds of soluble phosphoric acid . 

 51.4 pounds of insoluble phosphoric acid 

 52.8 pounds of nitrogen .... 

 43.2 pounds of potassium oxide . 



Per cent. 



7.31 



60.90 



39.10 



12.99 



8.13 



1.75 



3.11 



4.64 



.48 



120 33 

 3 15 

 3 73 



22 27 



$49 48 



Per cent. 

 14.99 

 53.83 

 46.17 

 12.42 

 9.85 



2.57 

 2.64 

 2.16 

 2.68 



$24 66 



3 08 



12 67 



2 16 



$42 67 



Bosworth Brothers* Ammoniated Bone Superphosphate. 

 (Collected of Messrs. Holden & Wilson, Worcester, Mass.) 



Moisture 



Organic and volatile matter 



Ash constituents 



Per cent. 

 8.00 



41.71 



58.29 



