vi PREFACE 



tecting wild life. Let every graduate ask himself 

 how much he has learned in the classroom of this 

 highly important branch of zoological work. 



The course of lectures now published in this 

 volume represents the awakening of Yale Univer- 

 sity, through the efforts of Professor James W. 

 Tourney, Dean of the Forestry School. The 

 publication of this volume by the University Press 

 may well be accepted as a contribution to a cause. 

 It is hoped by those who have made possible this 

 lecture course and this volume that this presenta- 

 tion may arouse other educators in our great insti- 

 tutions of learning to take up their shares of the 

 common burden of conserving our wild life from 

 the destructive forces that so long have been bear- 

 ing very heavily upon it. It is not right that this 

 enormous task should be left to a few toilers 

 and fighters merely because they have, as a matter 

 of conscience, dedicated themselves to this work. 



W. T. H. 



University Heights, 



New York City, August 15, 1914. 



