INDEX. 



361 



Warbler, black 151 



black and white » 320 



Blackburulan 148 



Brasher's 331 



crerulean... . 319 



golden-winged 321 



gray 217 



hedge 212 



hooded 329 



Kentucky 329 



Lucy's 217 



magnolia 118, 219 



Nashville 217 



palm 219 



parula 324 



prothODotary 320 



red 157, 330 



red-faced 330 



Swainson's 218, 320 



western 136 



white 151 



wood ..319, 325 



worm-eating 320 



yellow-rumped 158, 182, 203, 219 



yellow-throated 215 



Water-ouzel 219 



Weismann, value of his work, 8; on 

 death, 8; immortality of protozoa, 

 9; against existence of neiicleo- 

 plasm as advocated by Naegeli, 10; 

 reply to the objections of Vines, 13; 

 on embryogenesis, 16; theory of 

 heredity opposed by Ryder, 17; 

 summary of arguments between 

 Weismann and opponents, 21; ex- 

 planation of pammixis, 22, on trans- 

 mission of mutilations, 30; experi- 

 ments on tails of white mice, 31 : 

 criticism of observations on feet of 

 Chinese ladies by Cunningham, 31: 

 inheritance of artificially induced 

 epilepsy in guinea pigs, 33-34; 

 theoi'y of variation, 55 56; theory 

 of variation criticized by Hartog, 

 56-57 ; on sexual selection, 97. 



Whip-poor-wills 196, 207 



Woodpecker 203, 210, 213. 279. 280 



Califoruian . . 143, 163, 170, 173, 178, 191 



downy 175, 211, 2.55 



golden-fronted 222 



hairy 255 



red-headed 145, 217 



three-toed 155, 222 



Williamson's 222 



Wrens 196, 332 



Wrynecks 279. 280 



Xanthocephalus 218, 236 291 



xanthocephalus, instance of corre- 

 lation between red and yellow, 155, 157 



Xanthoura luxuosa 158, 243 



guatemalensis 243 



Xeuopicus 224 , 280 



albolarvatus 146, 281 



Yarrell, on changes of pliimage. .132, 



133, 136 



Zenaidura macroura 205 



Zonotrichia 180, 196, 305 



albicollis .183, 305 



coronata 187,176,209,305 



leucophrys 209, 254, 305 



gam ball 184, 254 



querula 183, 305 



Zoorubin 138 



