TRANSPIRATION OF SILPHIUM 



323 



6:^0 8:30 10:30 12:30 2:30 4:30 630 



Fig. 7. Curves of transpiration of four leaves of Silphium from different 

 heights (solid lines, numbered as in table 7) and of wind velocity for experiment 

 of August 21, 1912. 



6:30 



8:50 



10:30 



12:50 



2:30 



4:30 



6:30 



Fig. 8. Curves of evaporation at two heights (solid lines, numbered as in 

 table 7) and of temperature and relative humidity for experiment of August 

 21, 1912. 



