Acknowledgments v 



ralist, and formerly Professor of Zoology, Ann Arbor, Michigan ; 

 E. L. Rice, Professor of Zoology, Ohio-Wesleyan University ; 

 Amos W. Butler, Author of " Birds of Indiana " ; J. E. Talbot, 

 Director Training School, Northwestern Ohio Normal Col- 

 lege ; R. W. Hegner, Assistant Professor of Zoology, Univer- 

 sity of Michigan; and S. A. Kurtz, High School, Lorain, 

 Ohio. 



To the Bureau of Biological Survey, United States Depart- 

 ment of Agriculture, special expressions of appreciation are 

 due for its courtesy in granting the loan of fifty of the orig- 

 inal paintings by Louis Agassiz Fuertes, for purposes of 

 reproduction among the colored engravings of birds in Part 

 Three. 



For permission to quote extracts from the writings of 

 Oliver Wendell Holmes, Thomas Bailey Aldrich, James 

 Russell Lowell, Henry Wadsworth Longfellow, Edith M. 

 Thomas, Edgar Fawcett, and Christopher Pearse Cranch, 

 expressions of gratitude are due the Houghton Mifflin 

 Company, Boston, authorized publishers of the works of 

 these poets. The stanzas on the Song Sparrow (page 322) 

 by Henry van Dyke are used by permission of Charles 

 Scribner's Sons, New York, publishers of Dr. van Dyke's 

 poems. For the illustration showing Lombardy poplars 

 (page 79), the publishers are under obligations to the 

 William H. Moon Company, Nurserymen, of Morrisville, 

 Pennsylvania. 



