1914] 



OTIS— TRANSPIRATION OF WATER PLANTS 



475 



(c) Relation of transpiration to transpiring surface 



common 



same 



amount 



CHART 



12 13 14 15 16 17 X 19 



AUGUST 



20 21 22 X 24 

 19 10. 



and 



number of plants of the same 

 ition rate overcoming inclividu; 



obtained 



1910. Utilizing the data on the amount of plant surface exposed 



