Viii PREFACE. 



into the pockets of the farmers. Every manufacturer 

 has increased the quality of his article. The State of 

 Delaware employs a State Chemist, and all manufac- 

 turers must have their fertilizers analyzed by that 

 chemist before they are allowed to sell in that State, 

 so that there was a fair chance to observe the rise of the 

 Phosphate Business." 



Immediately after the publication of " American 

 Manures," Messrs. Watt-son & Clark, manufacturers of 

 Superphosphate of Lime, No. 135 North Water street, 

 Philadelphia, while candidly admitting the correctness 

 of analyses and fairness of criticism of their product, 

 informed the writer that they manufacture a superphos- 

 phate of lime (never found in the market in bags), 

 which they warrant to contain 10 per cent, of soluble 

 phosphoric acid (anhydrous), and which in quantity 

 they are willing to sell at the price laid down in this 

 book, namely, 12 J cents per pound, for soluble phos- 

 phoric acid; or, in other words, they charge for the 

 above superphosphate, $25 per short ton. 



This statement is made, because justice demands it; 

 and farmers desirous of getting the worth of their money, 

 would do well to club together to purchase such an 

 article in quantity. Subsequent division to meet the 

 wants of each purchaser could easily be effected. 



WILLIAM H. BRUCKNER. 



March, 1872. 



