U. S. DEPARTMENT OF AGRICULTURE. 

 BUREAU OF PLANT INDUSTRY— BULLETIN NO. 19?. 



\B. T. GALLOWAY, Chief of Bureau. 



THE SOY BEAN; HISTORY, VARIETIES, 

 AiND FIELD STUDIES. 



BY 



C. V. PIPER, Agrostologist, 



AND 



W. J. MORSE, Scientific Assistant, 

 Forage-Crop Investigations. 



Issued December 31, 1910. 



WASHINGTON: 



government printing office. 



1910. 



