COMMERCIAL FERTILIZERS. 



287 



X. 



Russel Cos's Ammoniated Superphosphate. 



(Collected of MesBrs. Spaulding 8c Co., Nortbanapton, Mass.) 



Per cent. 



Moisture lost at 100° C 9.90 



Organic and volatile matter ..... 47.32 



Ash constituents 52.60 



Total phosphoric acid 14.63 



Soluble phosphoric acid 7.08 



Reverted phosphoric acid 2.22 



Insoluble phosphoric acid 5.33 



Total nitrogen 2.81 



Insoluble matter 1.96 



Valuation per ton of two thousand pounds : 



141.6 pounds of soluble phosphoric acid 

 44.4 pounds of reverted phosphoric acid 



106.6 pounds of insoluble phosphoric acid 

 56.2 pounds of nitrogen .... 



$38 62 



XI. 



Russel Coe^s Ammoniated Superphosphate. 

 (Messrs. Rice Brothers, Worcester, Mass.) 



Moisture lost at 100° C. 

 Organic and volatile matter 

 Ash constituents . 

 Total phosphoric acid . 

 Soluble phosphoric acid . 

 Reverted phosphoric acid 

 Insoluble phosphoric acid 

 Nitrogen 

 Insoluble matter . 



Per cent 



29.67 



51.46 



48.54 



14.34 



5.59 



3.27 



5.48 



2.30 



1.80 



Valuation per ton of two thousand pounds : 



111.8 pounds of soluble phosphoric acid 

 65.4 pounds of reverted phosphoric acid 



109.6 pounds of insoluble phosphoric acid 

 46 pounds of nitrogen .... 



J5 09 



