FOREWORD 
the brute ends and the human begins? Many 
of the emotions of man’s heart find their counter- 
part in the life of birds. That we do not perceive 
this proves only how dull is our sight. 
<¢ To him who in the love of Nature holds 
Communion with her visible forms, she speaks 
A various language.”” 
We hear and interpret according to the keenness 
of our own ears. 
IRENE GRosvENOR WHEELOCK. 
CHICAGO, January, 1902. 
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