THE 



FLIGHT OF BIRDS 



By F. W. HEADLEY, M.B.O.U. 



Author of " The Structure and Life of Birds " 

 " Life and Evolution" Sec. 



WITH SIXTEEN PLATES 

 AND MANY TEXT-FIGURES 



WITHERBY & CO. 



326 HIGH HOLBORN LONDON 



191 2 



11 n I I «P 



LIBRARY 



OF THE 



AMERICAN MUSEUM 



