Division in the Root of the Vicia Faba. 



TABLE VII. 



159 



The conclusion to be drawn from the accompanying figures 

 is very evident ; i. e., that without exception the growth of 

 the roots is greater during day than during night. In all the 

 diagrams there is seen a change in position of the root, indi- 

 cated by the dotted line. This is due in all probability to the 

 circumnutation of the roots, and in calculating the rate of 

 growth, all such changes have been taken into consideration. 



Many more experiments were performed than are here 



