PLATE II 

 The Effect of Light upon Early Development 



Fig. i. The effect of light upon the development of Finns ponderosa 

 (S. D. ). Ten plants each (i) grown in open light, (2) grown in medium 

 shade. 9/, natural size. 



Fig. 2. The effect of light upon the development of Robinia pseudacacia. 

 Three plants each (1) grown in open light, (2) in medium shade, (3) in 

 dense shade. -}i natural size. 



