Heliothrix auriculata, young of.
Helix pomatia, example of individual attachment in.
Hellins, J., proportions of sexes of Lepidoptera reared by.
Helmholtz, on pleasure derived from harmonies; on the human eye; on the vibration of the auditory hairs of crustacea; the physiology of harmony.
Hemiptera.
Hemitragus, beardless in both sexes.
Hemsbach, M. von, on medial mamma in man.
Hen, clucking of.
Hepburn, Mr., on the autumn song of the water-ouzel.
Hepialus humuli, sexual difference of colour in the.
Herbs, poisonous, avoided by animals.
Hermaphroditism, of embryos; in fishes.
Herodias bubulcus, vernal moult of.
Heron, Sir R., on the habits of peafowl.
Herons, love-gestures of; decomposed feathers in; breeding plumage of; young of the; sometimes dimorphic; continued growth of crest and plumes in the males of some; change of colour in some.
Hesperomys cognatus.
Hetaerina, proportion of the sexes in; difference in the sexes of.
Heterocerus, stridulation of.
Hewitt, Mr., on a game-cock killing a kite; on the recognition of dogs and cats by ducks; on the pairing of a wild duck with a pintail drake; on the courtship of fowls; on the coupling of pheasants with common hens.
Hilgendorf, sounds produced by crustaceans.
Hindoo, his horror of breaking his caste.
Hindoos, local difference of stature among; difference of, from Europeans; colour of the beard in.
Hipparchia Janira, instability of the ocellated spots of.
Hippocampus, development of; marsupial receptacles of the male.
Hippocampus minor.
Hippopotamus, nakedness of.
Hips, proportions of, in soldiers and sailors.
Hodgson, S., on the sense of duty.
Hoffberg, on the horns of the reindeer; on sexual preferences shewn by reindeer.
Hoffman, Prof., protective colours; fighting of frogs.
Hog, wart-; river-.
Hog-deer.
Holland, Sir H., on the effects of new diseases.
Homologous structures, correlated variation of.
Homoptera, stridulation of the, and Orthoptera, discussed.
Honduras, Quiscalus major in.
Honey-buzzard of India, variation in the crest of.
Honey-sucker, females and young of.
Honey-suckers, moulting of the; Australian, nidification of.
Honour, law of.
Hooker, Dr., forbearance of elephant to his keeper; on the colour of the beard in man.
Hookham, Mr., on mental concepts in animals.
Hoolock Gibbon, nose of.
Hoopoe, sounds produced by male.
Hoplopterus armatus, wing-spurs of.
Hornbill, African, inflation of the neck-wattle of the male during courtship.
Hornbills, sexual difference in the colour of the eyes in; nidification and incubation of.
Horne, C., on the rejection of a brightly-coloured locust by lizards and birds.
Horns, sexual differences of, in sheep and goats; loss of, in female merino sheep; development of, in deer; development in antelopes; from the head and thorax, in male beetles; of deer; originally a masculine character in sheep; and canine teeth, inverse development of.
Horse, fossil, extinction of the, in South America; polygamous; canine teeth of male; winter change of colour.
Horses, rapid increase of, in South America; diminution of canine teeth in; dreaming; of the Falkland Islands and Pampas; numerical proportion of the sexes, in; lighter in winter in Siberia; sexual preferences in; pairing preferently with those of the same colour; numerical proportion of male and female births in; formerly striped.
Hottentot women, peculiarities of.
Hottentots, lice of; readily become musicians; notions of female beauty of the; compression of nose by.
Hough, Dr. S., men's temperature more variable than women's; proportion of sexes in man.
House-slaves, difference of, from field-slaves.
Houzeau, on the baying of the dog; on reason in dogs; birds killed by telegraph wires; on the cries of domestic fowls and parrots; animals feel no pity; suicide in the Aleutian Islands.
Howorth, H.H., extinction of savages.
Huber, P., on ants playing together; on memory in ants; on the intercommunication of ants; on the recognition of each other by ants after separation.