142 



AMERICAN MANURES. 



The average amount of bone phosphate of 

 lime in the twelve analyses, is 57*58. The 

 writers have been informed that the company 

 who have control of this deposit have adopted 

 the following tariff, viz : Twenty cents for each 

 unit or per centage of bone phosphate contained 

 in 100 Ibs. represents the value of a ton. The 

 average per centage by above Table is 57*58, 

 which at 20 cents per unit would make the price 



