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Park, Mungo, negro-women teaching their children to love the truth; his treatment by the negro-women; on negro opinions of the appearance of white men. Parker, Mr., no bird or reptile in line of mammalian descent. Parrakeet, young of; Australian, variation in the colour of the thighs of a male. Parrot, racket-shaped feathers in the tail of a; instance of benevolence in a.

The rapid flying white-booted racket-tail is likewise common near Santa Fe. It possesses muffs, like the former, and is found at an elevation of nearly 10,000 feet. It is named from the long, racket-shaped feathers of the tail, which, when flying, are in constant motion, waving softly in the air, opening and closing in the most beautiful manner.

Drill, sexual difference of colour in the. Dromaeus irroratus. Dromolaea, Saharan species of. Drongo shrike. Drongos, racket-shaped feathers in the tails of. Dryness of climate, supposed influence of, on the colour of the skin. Dryopithecus. Duck, harlequin, age of mature plumage in the; breeding in immature plumage. Duck, long-tailed, preference of male, for certain females.

Field-slaves, difference of, from house-slaves. Fiji Archipelago, population of the. Fiji Islands, beards of the natives; marriage-customs of the. Fijians, burying their old and sick parents alive; estimation of the beard among the; admiration of, for a broad occiput. Filial affection, partly the result of natural selection. Filum terminale. Finch, racket-shaped feathers in the tail of a.

Ecker, figure of the human embryo; on the development of the gyri and sulci of the brain; on the sexual differences in the pelvis in man; on the presence of a sagittal crest in Australians. Edentata, former wide range of, in America; absence of secondary sexual characters in. Edolius, racket-shaped feathers in. Edwards, Mr., on the proportion of the sexes in North American species of Papilio.

Moths, absence of mouth in some males; apterous female; male, prehensile use of the tarsi by; male, attracted by females; sound produced by; coloration of; sexual differences of colour in. Motmot, inheritance of mutilation of tail feathers; racket-shaped feathers in the tail of a. Moult, double; double annual, in birds. Moulting of birds. Moults, partial. Mouse, song of.

Humboldt, A. von, on the rationality of mules; on a parrot preserving the language of a lost tribe; on the cosmetic arts of savages; on the exaggeration of natural characters by man; on the red painting of American Indians. Hume, D., on sympathetic feelings. Humming-bird, racket-shaped feathers in the tail of a; display of plumage by the male.

Eunomota superciliaris, racket-shaped feathers in the tail of. Eupetomena macroura, colours of the female. Euphema splendida. Euplocamus erythrophthalmus, possession of spurs by the female. Europe, ancient inhabitants of. Europeans, difference of, from Hindoos; hairiness of, probably due to reversion. Eurostopodus, sexes of. Eurygnathus, different proportions of the head in the sexes of.

Faye, Prof., on the numerical proportion of male and female births in Norway and Russia; on the greater mortality of male children at and before birth. Feathers, modified, producing sounds; elongated, in male birds; racket-shaped; barbless and with filamentous barbs in certain birds; shedding of margins of. Feeding, high, probable influence of, in the pairing of birds of different species.

Diamond-beetles, bright colours of. Diastema, occurrence of, in man. Diastylidae, proportion of the sexes in. Dicrurus, racket-shaped feathers in; nidification of. Dicrurus macrocercus, change of plumage in. Didelphis opossum, sexual difference in the colour of. Differences, comparative, between different species of birds of the same sex.