EFFECT OF TRANSPIRATION 



247 



The record was taken on the first day under normal tran- 

 spiration (middle record, fig. 142). On the second day the 



Fig. 142. Record of Kentia Palm before and' after abolition 



of transpiration. 



1. Record of diurnal variation of temperature, which was very 



similar on two successive days. 



2. Diurnal record of the Palm under normal transpiration. 



3. Persistence of diurnal movement after abolition of transpira- 



tion. {See text.) 



Stem and all the leaves of the Palm were very thickly covered 

 with an impermeable coating of vasehne, which practically 



