Patjc J67{1). 



PLATE 89. 



MA/tOt 



a 10 fit's 4 e a 10 XII 2 4 s e la M's 



merCHEoi 



MERCfiEDl 



Relationship between seed-weight and atmospheric humidity, 

 lower curve (2), seod-weight. 



Upper curve (1), humidity 



