No. S. 



DEPARTMENT OF AGRICULTURE. 



902 



few analyses for these materials, with the exception of ground bone 

 and dissolved rock, have been made in Pennsylvania. The figures 

 in the following table include the averages of the results of analyses 

 made in Connecticut, Massachusetts, New Jersey and Pennsylvania 

 during the past year, except in the case of ground bone and dissolved 

 rock phosphates, where Pennsylvania results alone are included. 



Composition of Non-Acidulated Fertilizer Ingredients (Per Cent). 



Composition of Acidulated Fertilizer Ingredients (Per Cent). 



•Also contains 2.40 per cent, nitrogen. 



The above figures, considering only those cases where a consider- 

 able number of analyses are available, would indicate that there has 

 been no great change in the composition of the raw materials used in 

 fertilizer manufacture. 



Cost per Pound of Fertilizer Constituents. 



From the foregoing data showing the cost per ton, hundred- 

 weight, or other unit of measure, of the several raw materials, and 



