Chap, hi.] the Movements of Plants. 563 



It appears then that scarcely any point of fundamental 

 importance in phytodynamics was cleared up before the period 

 at which this history closes ; it was not till after that date that 

 these questions began to be studied from new points of view, 

 and they are at the present time still under discussion. 



D. H. HILL UBRARY 



North ran Stat< College 



002 



