CONSERVATION AND ITS MEANING 607 



held in St. Louis in March, 1937, had this end in view and formed the 

 Wild Life Federation. Such a Bureau must have the necessary fore- 

 sight to enable it to plan wisely and well a long-term conservation 

 program which will meet the ultimate needs of this great country of 

 ours and preserve our wealth of natural resources. Otherwise in 

 the years to come the American people may be looked upon as the 

 greatest "desert makers" of all time. 



SUGGESTED READINGS 



Hornaday, W. T., Wild Life Conservation in Theory and Practice, Yale Uni- 

 versity Press, 1914. 



A fund of information concerning the conservation of wild life up to 1915. 

 Hornaday, W. T., Thirty Years War for Wild Life, Charles Scribner's Sons, 



1931. 



A valedictory by one of this country's most ardent conservationists. 

 Pack, C. L., Trees as Good Citizens, American Tree Association, 1922. 



An interesting and popular account of the value of shade trees, with 



suggestions for conservation. 

 Rowan, W., The Riddle of Migration, The Williams and Wilkins Co., 1932. 



Applications to the conservation of wdld birds. 



