S45 
Birds arth, “rs athe gag fe 
Sees slrPCATTON 
OF 
pele DS); 
AN ATTEMPT TO DIAGNOSE THE SUBCLASSES, ORDERS, SUBORDERS, 
AND SOME OF THE FAMILIES OF EXISTING BIRDS. 
BY 
HENRY SEEBOHM. 
LONDON: 
R. H. PORTER, 18 PRINCES STREET, CAVENDISH SQUARE, W. 
1890. 
