194 



A YEAR IN SCIENCE 



and useful. Everything which we learn adds a new 

 interest to- our lives. Consider for a moment what you 

 know about the plants which you see each day as you 

 go to and from school. How do these plants live? 

 Do they breathe? What kind of food do they require, 

 and how does this food reach the topmost leaf 011 a 

 large tree ? To answer these and many other questions 

 will afford you pleasure and satisfaction in your study 

 of plants. 



Photograph by Henry G. Peabody. 

 Fig. 73, A California garden. 



The vegetation about us is abundant and of great 

 variety. There are trees, shrubs, vines, herbs, mosses, 

 ferns, mushrooms, and many other kinds of plants. 

 They vary in size from our largest trees, over 300 feet 

 high, to forms so small that they can not be seen without 



