476 



BOTANICAL GAZETTE 



[DECEMBER 



to the air, described under the heading " Experiments," the growth 

 curves of charts II- VII were constructed as a working basis for 



CHART II. 



s 



to 



J>^4 oo 



OOlCO 



£ 





8 



10 11 12 13 



PIS* 



uo 



o a5— » omw 



L, 



TJ aj Oi-»-i • o 



w 



too -a aj 

 ■h loo. 



o 



°I 



zoo 



14 15 16 17 X 19 



AUGUST 



20 21 22 X 24 

 19 10. 



25 



26 27 28 29. 30 



the transpiring surface. 



assumed 



form from the time of starting the readings to the date of final 



measurement, makin 



of surface oc- 



