68 



THK PHYSIOLOGY OP STOMATA. 



32 



33' 



32 



-64 

 -63 



.62 



8p.m. 10 12 2a.m. 4 6 8 10 12 2p.m. 4 6 



FIG. 22. Curves for experiments 62, 63, and 64. Fouquieria splendens. s. curve of stomatal condition- 



/\ 



/\ 



I 



58 



IL\ 



32J. 



\ 



60 



^59 



8p.rn. 



10 12 4 6 8 10 12 2p.m. 



FIG. 23. Curves for experiments 58, 59, and 60. Fouquieria splendens. 



Experiments 65 and 66. July 18, 19, 1904 (fig. 24). The curve of 65 is normal throughout; 

 66 was placed in dark room at n h i5 m and replaced in light at u h 25 m , 10 minutes later. 

 Readings in tube-lengths reduced to hourly rates. 



TABLE 39. Rate of transpiration. 



