796 INDEX. 



Wliiteness, a sexual ornament in some birds, 563; of mammals in- 

 habiting snowy countries, 619. 



VVhite-tbroat, aerial love-dance of the male, 432. 



Whitney, Prof., on the development of language, 97; language 

 not indispensable for thought, 100. 



Widgeon, pairing with a pintail duck, 471. 



Widow-bird, polygamous, 248; breeding plumage of the male, 445, 

 457; female, rejecting the unadorned male, 476. 



Widows and widowers, mortality of, 158. 



Wilckens, Dr., on the modification of domestic animals in mount- 

 ainous regions, 40; on a numerical relation between the hairs and 

 excretory pores in sheep, 225. 



Wilder, Dr. Burt, on the greater freqaeney of supernnmerary 

 digits in men than in women, 253. 



Williams, on the marriage-customs of the Fijians, 684. 



Wilson, Dr., on the conical heads of the natives of Northwestern 

 Africa, 665; on the Fijians, 665; on the persistence of the fashion of 

 compressing the skull, 666. 



Wing-spurs, 413, 511. 



Wings, differences of, in the two sexes of butterflies and Hymen- 

 optera, 314; play of, in the courtship of birds, 455. 



Winter, change of color of mammals in, 619. 



Witchcraft, 108. 



Wives, traces of the forcible capture of, 163. 



Wolf, winter change of the, 619. 



Wolff, on the variability of the viscera in man, 30. 



WoUaston, T. V., on Eurygnathus, 314; on musical Curculionidse^ 

 341; on the stridulation of Acalles, 346. 



Wolves learning to bark from dogs, 82; hunting in packs, 114; 

 black, 616. 



Wombat, black varieties of the, 616. 



Women distinguished from men by male monkeys, 9; preponder- 

 ance of, in numbers, 276; selection of, for beauty, 682; effects of 

 selection of, in accordance with different standards of beauty, 666; 

 practice of capturing 673, 676; early bethrothals and slavery of, 677; 

 freedom of selection by, in savage tribes, 683. 



Wonder, manifestations of, by animals, 80. 



Wonfor, Mr., on sexual peculiarities in the wings of butterflies, 314; 

 Wood, J., on muscular variations in man, 29, 46, 47; on the greater 

 variability of the muscles in men than in women, 253; Wood, T. W., 

 on the coloring of the orange-tip butterfly, 355; on the habits of the 

 Saturniidae, 358; quarrels of chamseleons, 405 ; on the habits of 

 Menura Alberti, 421 ; on Tetrao ciqndo, 422 ; on the display of 

 plumage by male pheasants, 449, 451; on the ocellated spots of the 

 Argus pheasant, 501; on fighting of Menura superba, 461; on the 

 habits of the female cassowary, 545. 



Woodcock, coloration of the, 559. 



Woodpecker, selection of a mate by the female, 472. 



Woodpeckers, 421; tapping of, 426; colors and nidification of the, 

 518, 521, 529; characters of young, 540, 548, 557. 



Woolner, Mr., observations on the ear in man, 16. 



Wormald, Mr., on the coloration of Hy2)oj)yra, 357. 



Wounds, healing of, 8. 



