STOMATAI, RESPONSE; TO SUDDEN CHANGE. 



7.15a.m. 7.30 7.45 8.00 



53 



lOa.m 



£p.m. 



Fig. 17. — Curves for experiments 112, 1 15, and 117. Verbena ciliata. The lines 

 marked s are curves of stomatal movement. 



Experiment 112.— June 19, 1905 (fig. 17). Verbena ciliata. Burette potometer. 

 Placed in dark room at 9 a. m. 



Table 31. — Rates 0} transpiration. 



