328 GENERAL BIOLOGY 



men crowd, as do the beasts, for food and standing room. 

 And whenever and wherever they crowd, in good times or 

 bad, they make such use of the earth's resources as means 

 irreparable loss, and insures that the crowding of the future 

 will be of intensified severity. 



The greatest problems of man's future upon the earth are 

 connected with better breeding and better nurture. 

 Security for the future undoubtedly lies in having more 

 knowledge, and in making such use of it as will yield better 

 results in racial improvement and in individual develop- 

 ment. 



