TRANSPIRATION STUDIES. 



25 



EXPERIMENT VII. 



Subject, plant No. 1 ; area, 52.95 sq. cm. Atmometer No. 812, equivalent 

 to 143 sq. cm. of free water surface. Situation, in the open, exposed to sun 

 and wind, sun continuously bright all day. The wind movement was very 

 slight up to 3 p. m., when the velocity increased markedly and continued 

 high until the close of the experiment. 



TABLE 7. Transpiration of potted plant No. 1. Experiment VII. Date, April 23, 1911. 



10 11 



FIG, 



11. Graph for transpiration of potted plant No. 1, 

 Exp. VII. 



