CHEMICAL COMPOSITION OF MAIZE GRAIN 641 



meal and bran. For " sifted meal " it is treated on the rotary CHAP 

 sieve scalper previously referred to. XIII 



Fig. 220. — Three-pair high roller mill for grinding maize. 

 (Courtesy of Messrs. Samuelson, Banbury.) 



The advantage of this system lies in the fact that it re- 

 quires less power to work it than is necessary for the mill- 

 stone process, and that it makes a meal comparatively free 



41 



