vi THE STRUCTURE OF THE FOWL 



include and what to leave out, having regard 

 to the fact that a student's manual was planned 

 and not a specialist's book of reference. In 

 deciding the scope of the book, much valuable 

 help has been received in the form of sugges- 

 tions made by friends of considerable teaching 

 experience. To these and to Dr. John D. 

 Comrie, the General Editor of the Series, I 

 tender my thanks, and desire also to express 

 my appreciation of the unfailing courtesy of 

 the publishers. 



O. CHARNOCK BRADLEY. 



Edikbuhgh, 1915. 



