(HAVING A SPECIAL REFERENCE TO THEIR MIGRATIONS). 
Revised to April, 1899. 
BY 
JOHN CORDEAUX bo F-R.GS 2 MBO. 
EHx-President Yorkshire Naturalists’ Union ; 
EHz-President Lincolnshire Naturalisis’ Tinton: ; 
‘Secretary British Association Migration Committee ; 
Member Norfolk and Norwich Naturalists’ Society ; 
Hon. Member Leeds Naturalists’ Club ; 
Hon. Member Doncaster Scientific Society, 
e.; ée. 
LONDON: 
“1809. 
