CONTROL SERIES No. 81 

 Wholesale Quotations on Chemicals and Unmixed Materials. 



Fertilizer Trade Values. 



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

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

 which will not pass through the sieve. 



