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On the hair in Hylobates, see 'Natural History of Mammals, by C.L. Martin, 1841, p. 415. Also, Isidore Geoffroy on the American monkeys and other kinds, 'Hist. Nat. Gen. vol. ii. 1859, pp. 216, 243. Eschricht, ibid. s. 46, 55, 61. Owen, 'Anatomy of Vertebrates, vol. iii. p. 619.
In the paper to which I have referred, Professor Bischoff does not deny the second part of this statement, but he first makes the irrelevant remark that it is not wonderful if the brains of an orang and a Lemur are very different; and secondly, goes on to assert that, "If we successively compare the brain of a man with that of an orang; the brain of this with that of a chimpanzee; of this with that of a gorilla, and so on of a Hylobates, Semnopithecus, Cynocephalus, Cercopithecus, Macacus, Cebus, Callithrix, Lemur, Stenops, Hapale, we shall not meet with a greater, or even as great a, break in the degree of development of the convolutions, as we find between the brain of a man and that of an orang or chimpanzee."
Dutch, retention of their colour by the, in South Africa. Duty, sense of. Duvaucel, female Hylobates washing her young. Dyaks, pride of, in mere homicide. Dynastes, large size of males of. Dynastini, stridulation of. Dytiscus, dimorphism of females of; grooved elytra of the female. Eagle, young Cercopithecus rescued from, by the troop. Eagle, white-headed, breeding in immature plumage.
Hybrid birds, production of. Hydrophobia, communicable between man and the lower animals. Hydroporus, dimorphism of females of. Hyelaphus porcinus. Hygrogonus. Hyla, singing species of. Hylobates, absence of the thumb in; upright progression of some species of; maternal affection in a; direction of the hair on the arms of species of; females of, less hairy below than males.
Hylobates agilis, hair on the arms of; musical voice of the; superciliary ridge of; voice of. Hylobates hoolock, sexual difference of colour in. Hylobates lar, hair on the arms of; female less hairy. Hylobates leuciscus, song of. Hylobates syndactylus, laryngeal sac of. Hylophila prasinana.
Finches, spring change of colour in; British, females of the. Fingers, partially coherent, in species of Hylobates. Finlayson, on the Cochin Chinese. Fire, use of. Fischer, on the pugnacity of the male of Lethrus cephalotes. Fischer, F. Von, on display of brightly coloured parts by monkeys in courtship. Fish, eagerness of male; proportion of the sexes in; sounds produced by.
Martin, W.C.L., on alarm manifested by an orang at the sight of a turtle; on the hair in Hylobates; on a female American deer; on the voice of Hylobates agilis; on Semnopithecus nemaeus. Martin, on the beards of the inhabitants of St. Kilda. Martins deserting their young. Martins, C., on death caused by inflammation of the vermiform appendage. Mastoid processes in man and apes.
Thus the gorilla runs with a sidelong shambling gait, but more commonly progresses by resting on its bent hands. The long-armed apes occasionally use their arms like crutches, swinging their bodies forward between them, and some kinds of Hylobates, without having been taught, can walk or run upright with tolerable quickness; yet they move awkwardly, and much less securely than man. Prof.
Thrush, pairing with a blackbird; colours and nidification of the. Thrushes, characters of young. Thug, remorse of a. Thumb, absence of, in Ateles and Hylobates. Thury, M., on the numerical proportion of male and female births among the Jews. Thylacinus, possession of the marsupial sac by the male. Thysanura. Tibia, dilated, of the male Crabro cribrarius.
George Bennett,* a very excellent observer, in describing the habits of a male 'Hylobates syndactylus' which remained for some time in his possession, says: "He invariably walks in the erect posture when on a level surface; and then the arms either hang down, enabling him to assist himself with his knuckles; or what is more usual, he keeps his arms uplifted in nearly an erect position, with the hands pendent ready to seize a rope, and climb up on the approach of danger or on the obtrusion of strangers.
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