§1] 



EFFECT OF HEAT UPON GROWTH 



451 



TABLE XL VII 



Showing the Average Total Inceements in Length (in Millimeters) op 

 THE Plumules OF Seedlings subjected to Different Temperatures 

 (expressed in Degrees Centigrade). The Observations marked S 

 were made by Sachs ('60) ; those marked K, by Koppen ('71) ; and 

 those marked V, BY DE Vries ('70). The Time Interval is 48 Hours 



TABLE XLVIII 



Showing the Average Increments in Length in Millimeters of the 

 Sadicle of Various Seedling Plants subjected to Different Tem- 

 peratures. Temperatures in Degrees Centigrade. All from Sachs 

 ('60). The Time Interval is 48 Hours. 



* Growth during 96 hours. 



