664 



ANNUAL, REPORT OF THE 



Off. Doc. 



Salt. 



Muriate, SO per cent., per 100 lbs., 



Sulphate, 48 per cent, potash, per 100 lbs., 



Double manure salt, 4S-.50 per cent., per lOi) lbs 

 Kainit, 12.4 per cent., actual potash, per ton, 

 •Manure salt, 20 per cent, potash, per ton, 



1.915 

 2.20 



2.20 



8.50 



15.08 



Composition of Raw Materials. — In order to form a correct idea 

 of the cost per pound of tlie fertilizer constituents of these ma- 

 terials, it is needful to determine tlieir composition or, in other 

 words, the quantities of valuable constituents each contain. The 

 following' table shows the composition of the raw materials used 

 in the manufacture of fertilizers. No analyses of these materials, 

 with the exception of ground bone and dissolved rock, have been 

 made in Pennsylvania. Tlie figures in the following table include 

 the averages of the results of analyses made in Connecticut, New 

 Jersey and Massachusetts during the past jear, except in the case of 

 ground bone and dissolved rock phosphates, where Pennsylvania re- 

 sults alone are included. 



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



