INSPECTION OF COMMERCIAL FERTILIZERS 5 



The following fertilizer trade values are based on average wholesale quotations 

 of fertilizer chemicals and unmixed materials, as taken from trade journals for 

 six months ending March 1, 1933, to which 20 per cent has been added for over- 

 head. When appropriate, an additional allowance has also been made for bags, 

 labor and transportation. 



Fertilizer Trade Values. 



In pulverized manures, seed residues, and the water insoluble portion 

 ashes 



1 Fine bone and tankage refers to particles which, as sampled, w'ill pass through a sieve with 

 circular openings 1-50 of an inch in diameter. Coarse bone and tankage refers to that portion 

 w hich will not pass through the sieve. 



