COE'S SUPERPHOSPHATE. 



325 



Valuation per ton of two thousand pounds 



53.4 pounds of nitrogen 

 184.2 pounds of soluble phosphoric acid 

 30.0 pounds of reverted phosphoric acid 

 30.6 pounds of insoluble phosphoric acid 

 48.6 pounds of potassium oxide 



VI. 



Concord Chemical Fertilizer. 



$39 27 



(Messrs. Marshall, Miles, & Co., Concord, Mass.) 



Valuation per ton of two thousand pounds : — 



74.6 pounds of phosphoric acid .... 

 64.4 pounds of nitrogen ..... 



26.6 pounds of potassium oxide .... 



VII. 



Frank Coe's Ammoniated Superphosphate. 

 (J. A. Clark & Co., Worcester, Mass.) 



Moisture at 100° C. 



Organic and volatile matter 



Ash constituents 



Total phosphoric acid . 



Soluble phosphoric acid . 



Insoluble phosphoric acid 



Nitrogen 



Insoluble matter . . 



$4 48 



12 88 



1 07 



$18 43 



Per cent. 



16.02 



77.46 



22.54 



10.33 



9.59 



.63 



2.31 



1.10 



Valuation per ton of two thousand pounds: — 



191.8 pounds of soluble phosphoric acid . . $23 01 

 12.6 pouuds of insoluble phosphoric acid . . 76 



46.2 pounds of nitrogen 9 24 



$33 01 



