I shall try to show that life is response to the order of nature. . . . 

 Our interest in all branches of science is vital interest. It is only as living 

 things that we care to know. Life is that which, when joined to mind, 

 is knowledge, — knowledge in use; and we may be sure that all living 

 things with minds like ours are conscious of some part of the order 

 of nature, for the response in which life consists is response to this order. 

 — W. K. Krouks. 



To learn what is true in order to do what is right is the summing up 

 of the whole duty of man, for all who are not able to satisfy their mental 

 hunger with the east wind of authority. — T. H. Huxley. 



Nature study is learning those things in nature that are best worth 

 knowing, to the end of doing those things that make life most worth the 

 living. 



XVI 



