COE'S AND BRADLEY'S SUPERPHOSPHATE. 341 



Valuation per ton of two thousand pounds : — 



43.4 pounds of nitrogen 



72.8 pounds of soluble phosphoric acid . 

 83. G pounds of reverted phosphoric acid . 

 28.6 pounds of insoluble phosphoric acid 



f 8 68 

 9 10 

 7 53 

 1 72 



127 03 



X. 



Original Coe^s Ammoniated Superphosphate. 



(Manufactured by Bradley's Fertilizer Co., Boston; collected of Messrs. J. & 



J. A. Rice, "Worcester, Mass.) 



Per cent. 



60.76 

 39.24 

 18.19 



3.17 

 15.04 

 10.71 



3.38 

 .95 



2.96 



Organic and volatile matter 

 Ash constituents 

 Moistm-e lost at 100° C. . 

 Total nitrogen 

 Total phosphoric acid 

 Phosphoric acid soluble in water 

 Reverted phosphoric acid . 

 Insoluble phosphoric acid . 

 Insoluble matter, sand, &c. 



Valuation per ton of two thousand pounds : — 



63.4 pounds of nitrogen ^12 68 



214.2 pounds of soluble phosphoric acid . . . 26 78 



67.6 pounds of reverted phosphoric acid . . 6 09 



19 pounds of insoluble phosphoric acid . . 1 14 



^6 69 

 XI. 



William L. Bradley's Patent Superphosphate. 



(Messrs. J. & J. A. Rice, Worcester, Mass.) 



Per cent. 



Organic and volatile matter 60.94 



Ash constituents 39.06 



Moisture lost at 100° C 19.24 



Total nitrogen 3.12 



Total phosphoric acid 12.86 



Phosphoric acid soluble in water . . . .8.44 



Reverted phosphoric acid 24 



Insoluble phosphoric acid 4.18 



Insoluble matter, sand, &c 2.68 



Valuation per ton of two thousand pounds : — 



62.4 pounds of nitrogen ..... $12 48 



168.8 pormds of soluble phosphoric acid . . . 21 10 



4.8 pounds of reverted phosphoric acid . . 43 



83.6 pounds of insoluble phosphoric acid . .5 02 



$39 03 



