374 



BOARD OF AGRICULTURE. 



Farmers' Friend. 



(Read & Co., New York, N. Y. ; collected of Messrs. Newton & Fuller, Springfleld, Mass.) 



Per cent. 



Moisture at 100° C, 15.46 



Total phosphoric acid, 12.24 



Soluble phosphoric acid . 7.81 



Reverted phosphoric acid, 2.44 



Insoluble phosphoric acid, 1.99 



Nitrogen 2 13 



■ Potassium oxide, 3.50 



Insoluble matter, 6.52 



Valuation per ton of two thousand pounds 



156.2 pounds of soluble phosphoric acid, . 

 48.8 pounds of reverted phosphoric acid, 

 39.8 pounds of insoluble phosphoric acid, 

 42.6 pounds of nitrogen, 

 70.0 pounds of potassium oxide. 



$19 53 

 4 39 



2 39 

 10 23 



3 50 



$40 04 



Bradley'^s Sea Foivl. 



(Collected of Messrs. Puffer & Wilder, Springfleld, Mass.) 



Moisture at 100° C, 

 Total phosphoric acid. 

 Soluble phosphoric acid, 

 Reverted phosphoric acid 

 Insoluble phosphoric acid 

 Nitrogen, ... 

 Potassium oxide. 

 Insoluble matter. 



Per cent. 



13.70 

 11.45 

 7.87 

 1.01 

 2.57 

 2.73 

 2.58 

 4.90 



Valuation per ton of two thousand pounds 



157.4 pounds of soluble phosphoric acid, 

 20.2 pounds of reverted phosphoric acid, 

 61.4 pounds of insoluble phosphoric acid, 

 54.6 pounds of nitrogen, 

 51.6 pounds of i^otassium oxide, 



$40 25 



