The Light Relation 



431 



obvious that many of the effects conveniently discussed 

 under ' shading," in the sense of ' half-shade," are in 

 large part the results of changes in the water or mois- 

 ture relations. The relation of shade plants to fungous 

 diseases also deserves a more careful study. 



TABLE OF SOIL MOISTURE INSIDE AND OUTSIDE OF SHADE 



(CLOTH) TENT 



EVAPORIMETER READINGS, SHADE-TENT EXPERIMENTS, 



ITHACA, N.Y., 1908 



DATE 



Aug. 11-23 . . 

 Aug. 23 - - Sept. 1 

 Sept. 1-8 ... 

 Sept. 8-15 . . . 



Cc. OF WATER LOST BY 

 STANDARDIZED EVAPORIMETERS 



