780 



THE COMPLETE GRAZIER. 



BOOK Tin/ 



practice of the largest seed-firms, we are of opinion that the winnowing 

 machines with shifting tail-boards and zinc sieves, made on the 



* 



Fig. 347. Boby's Combined Corn-Dressing and Screening Machine. 



Fig. 348. Boby's Patent Corn Screen. 



principle of Mr. Cooch's dressing-machine, are* deeittedly better than 

 those which have been made on other lines. So far as preparing 



