Issued May 27, 1010. 



U. S. DEPARTMENT OF AGRICULTURE, 



BUREAU OF PLANT INDUSTRY— Circular No. 62. 



B. T. GALLOWAY, Chief of Buroau. 



THE SEPARATION OF SEED BAREEY BY 

 THE SFEITFIC GRAVITY METHOD. 



LIBRARV 



NEW YORK 

 BY 60TANICAI, 



.H. B. DERR, 



Agronomist in Charge of Barley Investigations, 

 Grain Investigations. 



38860 10 WASHINGTON : GOVERNMENT PRINTING OFFICE : 1910 



