4 APPLIED BIOLOGY 



ing this fact, it is the aim of this book (1) to call attention to 

 the most important facts and principles to be learned by the 

 study of selected animals and plants, and then (2) to show 

 how biological science applies to everyday human life. 

 This book is therefore entitled " Applied Biology " ; that 

 is to say, biology, the science of all life, is applied to, or looked 

 at from the standpoint of, human life as represented in the 

 experiences and interests of intelligent people in general. 



