OSTEOLOGY OF BIRDS 2$$ 



Plate 2 



The material shown in figures 12, 13, 14, 15, 16 and 17 is from 

 specimens in the author's collection, now in the New York State 

 Museum, and the specimens in figures 18 and 19 belong to the 

 United States National Museum. x\ll are exhibited natural size. 



