TABLE I. 

 Growth Rate of Bartlett Pear Shoots for the Season of 1919. 



120 



g 

 o 



C 60 



30 



o 



21 



42 



63 

 Time in days 



84 



105 



126 



Fig. 1. Growth mte of shoots of the pear tree. The curve represents the 



% 



value obtained from the equation log =2^(^—47.4) ; points within the circles 



114— :jj 



represent observed lengths at intervals of 7 days. 



547 



