PLATE 68 

 Biloxi soybeans: 



A. — Plants in box on left exposed to the light for 5 hours daily. Those in box on 

 right kept out of doors throughout the experiment. When photographed August 15, 

 1919, the plants on left contained fully matured seed pods and leaves were 

 yellowing, while plants on right had not blossomed. 



B. — Plants in box on left exposed to light daily for 7 hours; those on right exposed 

 12 hours daily. While both lots blossomed and fruited promptly, the plants under 

 the longer light exposure grew much larger than those under the shorter exposure. 

 Photographed August 19. 



