A STUDY OF LEAVES. 



41 



LEAVES ASLEEP. 



Leaves never tell their dreams ; but that they do 

 go to sleep is an open secret. Here is a compound 

 leaf asleep. The little leaflets which were in motion 

 all day have drooped and 

 sunk to rest. If cer- 



tain plants like the oxalis, clover, or pea, 

 be subjected to darkness during the 

 daytime, they may be caught napping. 



Lupinus awake 



Lupinus asleep. 



