igoo-i.] 



Effects of Water on Foliage Leaves. 



249 



coiTiplete restoration of normal turgidity, and o indicating no restora- 

 ation, and therefore no absorption. The other numbers represent 

 grades of restoration, twelve being greater than normal in the plant, two 

 things being taken into consideration in grading the leaves — (i) the 

 increase or decrease in weight, (2) the visible rigidity. 



EXPERIMENTS TO TEST WATER ABSORPTION BY DETACHED LEAVES. 

 ExPER. I. ; Time Absorbing 24 Hours. 



ExPER. II. ; Time Absorbing 18 Hours. 



* Branch with six leaves more turgid than either of the two separate ones, 

 t The cut end of the petiole had dipped under the surface of the water. 



