THE ACTIONS OF PLANTS. 

 FIG. 296. 



185 



Into another tumbler of water with a similar 

 cover put a second plant, leaves downward, as shown 

 in Fig. 297, and expose it to sunshine. 



After a few hours, compare the two plants. How 

 has it fared with the one that had its roots in water ? 

 What is the appearance of the other ? 



Let us now find, if we can, what was going on in 

 the plant that kept up its freshness. 



Arrange a glass of water with a cover of slit card- 

 board as before. Place in it a plant, root downward, 

 and cover the leaves with a glass, as shown in Fig. 

 297. Let it stand for a time in the sunshine. In a 

 little while look at the inverted tumbler. What do 

 you see upon its inner surface ? Where did it come 

 from ? What had the roots to do with it ? 



