162 AMERICAN MANURES. 



Sixth. What percentage of uncombined water, 

 do you warrant your fertilizer to contain ? 



Seventh. What percentage of pure potash is 

 there in the " salts of potash " contained in your 

 fertilizer ? 



Eighth. What percentage of phosphoric acid 

 is there in the " soluble phosphates " contained 

 in your fertilizer ? 



If purchasers would make it a rule to pro- 

 pound these questions to manufacturers and 

 dealers, should they not succeed in acquiring 

 the information sought, they would, in most 

 cases, be fully convinced of one thing, viz., the 

 supreme ignorance of both manufacturers and 

 dealers, of the nature of the constituents of what 

 they make and sell. 



