Meliphagidae, Australian, nidification of.
Melita, secondary sexual characters of.
Meloe, difference of colour in the sexes of a species of.
Memnon, young.
Memory, manifestations of, in animals.
Mental characters, difference of, in different races of men.
Mental faculties, diversity of, in the same race of men; inheritance of; variation of, in the same species; similarity of the, in different races of man; of birds.
Mental powers, difference of, in the two sexes in man.
Menura Alberti, song of.
Menura superba, long tails of both sexes of.
Merganser, trachea of the male.
Merganser serrator, male plumage of.
Mergus cucullatus, speculum of.
Mergus merganser, young of.
Metallura, splendid tail-feathers of.
Methoca ichneumonides, large male of.
Meves, M., on the drumming of the snipe.
Mexicans, civilisation of the, not foreign.
Meyer, on a convoluted body at the extremity of the tail in a Macacus and a cat.
Meyer, Dr. A., on the copulation of Phryganidae of distinct species.
Meyer, Prof. L., on development of helix of ear; men's ears more variable than women's; antennae serving as ears.
Migrations of man, effects of.
Migratory instinct of birds; vanquishing the maternal.
Mill, J.S., on the origin of the moral sense; on the "greatest happiness principle;" on the difference of the mental powers in the sexes of man.
Millipedes.
Milne-Edwards, H., on the use of enlarged chelae of the male Gelasimus.
Milvago leucurus, sexes and young of.
Mimicry.
Mimus polyglottus.
Mind, difference of, in man and the highest animals; similarity of the, in different races.
Minnow, proportion of the sexes in the.
Mirror, behaviour of monkeys before.
Mirrors, larks attracted by.
Mitchell, Dr., interbreeding in the Hebrides.
Mitford, selection of children in Sparta.
Mivart, St. George, on the reduction of organs; on the ears of the lemuroidea; on variability of the muscles in lemuroidea; on the caudal vertebrae of monkeys; on the classification of the primates; on the orang and on man; on differences in the lemuroidea; on the crest of the male newt.
Mobius, Prof., on reasoning powers in a pike.
Mocking-thrush, partial migration of; young of the.
Modifications, unserviceable.
Moggridge, J.T., on habits of spiders; on habits of ants.
Moles, numerical proportion of the sexes in; battles of male.
Mollienesia petenensis, sexual difference in.
Mollusca, beautiful colours and shapes of; absence of secondary sexual characters in the.
Molluscoida.
Monacanthus scopas and M. Peronii.
Monboddo, Lord, on music.
Mongolians, perfection of the senses in.
Monkey, protecting his keeper from a baboon; bonnet-; rhesus-, sexual difference in colour of the; moustache-, colours of the.
Monkeys, liability of, to the same diseases as man; male, recognition of women by; diversity of the mental faculties in; breaking hard fruits with stones; hands of the; basal caudal vertebrae of, imbedded in the body; revenge taken by; maternal affection in; variability of the faculty of attention in; American, manifestation of reason in; using stones and sticks; imitative faculties of; signal-cries of; mutual kindnesses of; sentinels posted by; human characters of; American, direction of the hair on the arms of some; gradation of species of; beards of; ornamental characters of; analogy of sexual differences of, with those of man; different degrees of difference in the sexes of; expression of emotions by; generally monogamous habits of; polygamous habits of some; naked surfaces of; courtship of.
Monogamy, not primitive.
Monogenists.
Mononychus pseudacori, stridulation of.
Monotremata, development of the nictitating membrane in; lactiferous glands of; connecting mammals with reptiles.
Monstrosities, analogous, in man and lower animals; caused by arrest of development; correlation of; transmission of.
Montagu, G., on the habits of the black and red grouse; on the pugnacity of the ruff; on the singing of birds; on the double moult of the male pintail.