TRANSPIRATION OF SILPHIUM 



317 



7:$0 



9:30 



11:30 



1:30 



3:30 



5:30 



7:30 



Fig. 3. Curves of transpiration and temperature for experiment of July 8, 

 1911, with electric fan, showing influence of wind velocity. The curves are 

 numbered in order from the fan outward. 



7:30 



9:30 



11:30 



1:30 



3:30 



5:30 



7:30 



Fig. 4. Curves of evaporation and relative humidity for experiment of July 

 8, 1911, with electric fan, showing influence of wind velocity. The curves are 

 numbered to correspond with the transpiration curves of figure 3. 



