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;
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