LABORATORY STUDY 



295 



LABORATORY EXPERIMENT TO PROVE THAT LEAVES 



GIVE OFF WATER 



Wrap in waxed paper a jar containing a small plain, and cover the 

 earth with half an inch of melted paraffine to prevent evaporation. 



Weigh the plant each day and note the amount of water l<»st by transpir- 

 ation through the stomata. 



LABORATORY STUDY OF LEAVES 



Examine as many leaves as possible and record the facts which yon 

 have learned about them in a report like the following : 



