Wilckens, Dr., on the modification of domestic animals in mountainous regions; on a numerical relation between the hairs and excretory pores in sheep.
Wilder, Dr. Burt, on the greater frequency of supernumerary digits in men than in women.
Williams, on the marriage-customs of the Fijians.
Wilson, Dr., on the conical heads of the natives of North-Western Africa; on the Fijians; on the persistence of the fashion of compressing the skull.
Wing-spurs.
Wings, differences of, in the two sexes of butterflies and Hymenoptera; play of, in the courtship of birds.
Winter, change of colour of mammals in.
Witchcraft.
Wives, traces of the forcible capture of.
Wolf, winter change of the.