INDEX GENERUM AVIUM. 
A LIST 
OF THE 
GENERA AND SUBGENERA OF BIRDS. 
BY 
¥F. H. WATERHOUSE, A.L.S., 
LIBRARIAN TO THE ZOOLOGICAL.SOCIETY OF LONDON. 
LONDON : | 
R. H. PORTER, 18 PRINCES STREET, CAVENDISH SQUARE. 
1889. 
