INDEX 



Valley of the Petchora, Migration 



of birds in, 142 

 Vertical Migration in autumn, 



269 

 Vertical Migration in autumn, 



order of, 269 

 Vertical Migration in spring, 252, 



253 

 Vertical Migration, order of, 252, 



253 



Wallace, Dr., on absence of 

 animals from Madagascar, 306, 



307 

 Wallace, Dr., on land birds com- 

 mon to Europe and Japan, 



41 



Water Areas a check to Emigra- 

 tion, 228 



West Continental Europe, Table 

 of species breeding in, yet 

 absent from British Area, 103 



Western Europe, geography of, 

 from late Pliocene to early 

 Post-Glacial time, 10 



West Europe, Post-Glacial Emi- 

 gration of birds in, 109 



West Mediterranean Islands, 1S9 

 West Mediterranean Islands, 



avifauna? of, 199 

 West Palaearctic Islands, the, 187 

 Wheatear, migrations of, 107, loS 

 Wheatear, migrations of to 



Ireland, 221 

 White, Dr. Buchanan, on Irish 



Lepidoptera, 139 

 Winter, birds never extend their 



range during, 284 

 Winter movement unable to ex- 

 tend area, 281 

 Winter visitors to British Area, 



routes followed by, 229 — 231 

 Winter visitors to the British 



Islands, departure of, 247 

 Wood Wren, absence of from 



Norway, 127 

 Wood Wren, probable winter 



quarters of individuals breeding 



in Sweden, 173 



Young birds. Migration of, 239 



Zones, species in Polar and Tem- 

 perate, 301 



THE END. 



Richard Clay <&» Sotu, Limited, London 6* Bungay. 



