672 



INDEX. 



Wives, traces of the forcible cap- 

 ture of, 140. 



Wolf, winter change of the, 537. 



Wolff, on the variability of the 

 viscera in man, 26. 



WoUaston, T. V., on Eurygna- 

 thus, 274: on musical Curculion- 

 idse, 301; on the stridulation of 

 Acalles, 303. 



Wolves learning to bark from 

 dogs, 70; hunting in packs, 98. 



, black, 535. 



Wombat, black varieties of the, 

 535. 



Women distinguished from men 

 by male monkeys, 8; preponder- 

 ance of, in numbers, 238; selec- 

 tion of, for beauty, 391; effects 

 of selection of, in accordance 

 with different standards of 

 beauty, 579; practice of captur- 

 ing, 584, 587; early betrothals and 

 slavery of, 588; freedom of selec- 

 tion by, in savage tribes, 593. 



Wonder, manifestations of, by an- 

 imals, 69. 



Wonfor, Mr.,_ on sexual peculiari- 

 ties in the wings of butterflies, 

 275. 



Wood, J., on muscular variations 

 in man, 26, 40, 41; on the greater 

 variability of the muscles in 

 men than in women, 219. 



, T. W., on the coloring of 



the orange-tip butterfly, 310; on 

 the habits of the Saturniidge, 

 312; quarrels of chamteleons, 353; 

 on the habits of Menura Al- 

 berti, 366; on Tetrao cupido, 368; 

 on the display of plumage by 

 male pheasants, 391; on the ocel- 

 lated spots of the Argus pheas- 

 ant, 484; on the habits of the fe- 

 male cassowary, 472. 



Woodcock, coloration of the, 486. 



Woodpecker, selection of a mate 

 by the female, 410. 



Woodpeckers, 366; tapping of, 371; 

 colors and nidiflcation of the, 

 449, 452, 485; characters of young, 

 459, 468, 475. 



Woolner, Mr., observations on the 

 ear in man, 15. 



Wormald, Mr., on the coloration 

 of Hypopyra, 312. 



Wounds, healing of, 8. 



Wren, 467; young of the, 475. 



Wright, C. A., on the young of 

 Orocetes and Petrocincla, 482. 



, Chauncey, great brain- 

 power requisite for language, 47; 

 on correlative acquisition, 565; 

 on the enlargement of the brain 

 in man, 604. 



, Mr., on the Scotch deer- 

 hound, 512; on sexual preference 

 in dogs, 519; on the rejection of 

 a horse by a mare, 520. 



, W. von, on the protective 



plumage of the Ptarmigan, 385. 



Writing, 140. 



Wyman, Prof., on the prolonsa- 

 tion of the coccyx in the human 

 embryo, 11; on the condition of 

 the great toe in the human em- 

 bryo, 11; on the occurrence of 

 the supra-oondyloid foramen in 

 the humerus of man, 21; on vari- 

 ation in the skulls of the natives 

 of the Sandwich Islands, 25; on 

 the hatching of the eggs in the 

 mouths and branchial cavities 

 of male fishes, 158, 341. 



Xenarchus, on the Cicadrs, 279. 

 Xenophon, selection in mankind 



advocated by, 28. 

 Xenorhynchus, sexual difference 



in the color of the eyes in, 419. 

 Xiphophorus Hellerii, peculiar 



anal fin of the male, 334. 

 Xylocopa, difference of the sexes 



in, 290. 



Tarrell, W., on the habits of the 

 Cyprinidffi, 245; on Raia clavata, 

 327; on the characters of the 

 male salmon during the breed- 

 ing season, 330, 366; on the char- 

 acters of the rays, 327, 331; on 

 the gemmeous dragonet, 333; on 

 the spawning of the salmon, 341; 

 on the incubation of the Lop- 

 hobranchii, 342; on rivalry in 

 song-birds, 364; on the trp.chea of 

 the swan, 370; on the moulting 

 of the Anatidae, 393; on the 

 young of the waders, 481. 



Yellow fever, immunity of ne- 

 groes and mulattoes from, 188. 



Touatt, Mr., on the development 

 of the horns in cattle, 230. 



Tura-caras, their notions of 

 beauty, 574. 



Zebra, rejection of an ass by a 

 female, 535; stripes of the, 540. 



Zebus, humps of, 528. 



Zigzags, prevalence of, as orna- 

 ments, 176. 



Zincke, Mr., on European emigra- 

 tion to America, 138. 



Zootoca vivipara, sexual differ- 

 ence in the color of, 353. 



Zouteveen, Dr., polydactylism, 35; 

 proportion of sexes at Cape of 

 Good Hope, 237; spiders at- 

 tracted by music, 270; on sounds 

 produced by fish, 343. 



Zygaenidee, coloration of the, 311. 



