i. 29;

on the moral sense as a distinction between man and animals, i. 70; on variability, i. 112; on the fertility of Australian women with white men, i. 221; on the Paulistas of Brazil, i. 225; on the evolution of the breeds of cattle, i. 230; on the Jews, i. 242; on the liability of negroes to tropical fevers after residence in a cold climate, i. 243; on the difference between field- and house-slaves, i. 246; on the influence of climate on colour, i. 246; on the Ainos, ii. 321; on the women of San-Giuliano, ii. 357.

QUECHUA Indians, i. 119; local variation of colour in the, i. 246; no grey hair among the, ii. 320; hairlessness of the, ii. 322; long hair of the, ii. 348.

_Querquedula acuta_, ii. 114.

_Quiscalus major_, proportions of the sexes of, in Florida and Honduras, i. 307.

R.

RABBIT, white tail of the, ii. 298.

RABBITS, danger-signals of, i. 74; domestic, elongation of the skull in, i. 147; modification of the skull in, by the lopping of the ear, i. 147; numerical proportion of the sexes in, i. 305.

RACES, distinctive characters of, i. 215; or species of man, i. 217; crossed, fertility or sterility of, i. 220; of man, variability of the, i. 225; of man, resemblance of, in mental characters, i. 232; formation of, i. 235; of man, extinction of, i. 236; effects of the crossing of, i. 240; of man, formation of the, i. 240; of man, children of the, ii. 318; beardless, aversion of, to hairs on the face, ii. 349.

RAFFLES, Sir S., on the Banteng, ii. 290.

RAFTS, use of, i. 137, 234.

RAGE, manifested by animals, i. 40.

_Raia batis_, teeth of, ii. 6.

_Raia clavata_, female spined on the back, ii. 2; sexual difference in the teeth of, ii. 6.

_Raia maculata_, teeth of, ii. 6.

RAILS, spur-winged, ii. 48.

RAM, mode of fighting of the, ii. 249; African, mane of an, ii. 284; fat-tailed, ii. 284.

RAMESES II., i. 217.

RAMSAY, Mr., on the Australian Musk-duck, ii. 38; on the Regent-bird, ii. 113; on the incubation of _Menura superba_, ii. 165.

_Rana esculenta_, vocal sacs of, ii. 28.

RAT, common, general dispersion of, a consequence of superior cunning,