Marcus Aurelius, on the origin of the moral sense; on the influence of habitual thoughts.
Mareca penelope.
Marks, retained throughout groups of birds.
Marriage, restraints upon, among savages; influence of, upon morals; influence of, on mortality; development of.
Marriages, early; communal.
Marshall, Dr. W., protuberances on birds’ heads; on the moulting of birds; advantage to older birds of paradise.
Marshall, Col., interbreeding amongst Todas; infanticide and proportion of sexes with Todas; choice of husband amongst Todas.
Marshall, Mr., on the brain of a Bushwoman.
Marsupials, development of the nictitating membrane in; uterus of; possession of nipples by; their origin from Monotremata; abdominal sacs of; relative size of the sexes of; colours of.
Marsupium, rudimentary in male marsupials.