55^ PHYSICAL GEOGRAPHY. 



Non-volatile matter, 38.46 per cent. 



Soluble phosphoric acid, IO -55 " 



Reduced phosphoric acid, ........ 2.14 " 



Insoluble phosphoric acid, 2.46 " 



Nitrogen (=2.5 ammonia), 2.02 " 



Valuation per ton of 2000 pounds. 



21 1. o pounds of soluble phosphoric acid, $34.24 



42.8 pounds of reduced phosphoric acid, 5.60 



49.2 pounds of insoluble phosphoric acid, 2.95 



40.4 pounds of nitrogen (50.0 pounds of ammonia), 12.12 



II. 

 W. L. Bradley's XL Fertilizer 



Moisture and volatile matter, 

 Non-volatile matter, . 

 Soluble phosphoric acid, . 

 Reduced phosphoric acid, 

 Insoluble phosphoric acid, 

 Nitrogen (3.23 ammonia), 



Valuation per ton of 2000 pounds 



129.0 pounds of soluble phosphoric acid, 

 56.6 pounds of reduced phosphoric acid, 

 72.0 pounds of insoluble phosphoric acid, . 

 48.6 pounds of nitrogen (64.6 ammonia), 



III. 

 Wilson's Ammoniated Superphosphate of Lime. 



Moisture and volatile matter, 

 Non-volatile matter, . 

 Soluble phosphoric acid, . 

 Reduced phosphoric acid, . 

 Insoluble phosphoric acid, 

 Nitrogen (3.42 ammonia), 



Valuation per ton of 2000 pounds. 

 133.0 pounds of soluble phosphoric acid, 

 20.2 pounds of reduced phosphoric acid, 

 18.6 pounds of insoluble phosphoric acid, . 

 56.4 pounds of nitrogen (68.4 ammonia), . 



$54.91 



$47-33 



$42.09 



