OSTEOLOGIA AVIUM; 
OR, 
A SKETCH OF THE OSTEOLOGY 
OF BIRDS. 
SuPpPLEMENT IT. 
BY 
T. C. EYTON, ESQ, -F.G.S., F.LS., 
And Corresponding Member of the Institute of Philadelphia. 
PUBLISHED BY WILLIAMS AND NORGATE, HENRIETTA STREET, 
COVENT GARDEN, LONDON, . 
AND 
_ &. HOBSON, WELLINGTON, SALOP.. . 
1875. 
