The Effect of Soil Depth upon Early Development 



Fig. I. The effect of soil depth upon the development <>f I'liius pon- 

 dcrosa (S. D.). Ten plants grown (i) in deep, (2) in medium, and (3) 

 in shallow soil. V2 natural size. 



J* \ 



Fig. 2. The effect of soil depth upon the development of linlnma psrit- 

 dacacia. Three plants each (1) urown in shallow, (2) in medium, ( j, ) in 

 deep soil. V.: natural size. 



