U. S. DEPARTMENT OF AGRICULTURE, 



BUREAU OF PLANT INDUSTRY- BULLETIN NO. 197. 



B. T. GALLOWAY, Chief of Bureau. 



THE SOY BEAN; HISTORY, VARIETIES, 

 AND FIELD STUDIES. 



BY 



C. V. PIPER, Agrostologist, 



AND 



W. J. MORSE, Scientific Assistant, 

 Forage-Crop Investigations. 



Issued December 31, 1910. 



LIBRARY 

 ^EW YORK 

 BOTANICAL 



QARUGN. 



WASHINGTON: 



governaient printing office. 



1910. 



