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391; on the moulting of the Anatidæ, 393; on the finding of new mates by magpies, 407; on the pairing of a blackbird and thrush, 414; on pied ravens, 424; on the guillemots, 424; on the colours of the tits, 458; on the immature plumage of birds, 466 et seq.
 * Machetes, sexes and young of, 485;
 * pugnax, supposed to be polygamous, 219; numerical proportion of the sexes in, 248; pugnacity of the male, 360; double moult in, 390.
 * McIntosh, Dr. colours of the Nemertians, 265.
 * McKennan, marriage customs of Koraks, 598.
 * Mackintosh, on the moral sense, 97.
 * MacLachlan, R., on Apatania muliebris and Boreus hyemalis, 254; on the anal appendages of male insects, 275; on the pairing of dragon-flies, 279; on dragon-flies, 290, 291; on dimorphism in Agrion, 291; on the want of pugnacity in male dragon-flies, 291; colour of ghost-moth in the Shetland Islands, 316.
 * McLennan, Mr., on infanticide, 46, 591; on the origin of the belief in spiritual agencies, 94; on the prevalence of licentiousness among savages, 119, 588; on the primitive barbarism of civilised nations, 143; on traces of the custom of the forcible capture of wives, 144, 592; on polyandry, 593.
 * Macnamara, Mr., susceptibility of Andaman islanders and Nepâlese to change, 188.
 * McNeill, Mr., on the use of the antlers of deer, 510; on the Scotch deerhound, 516; on the long hairs on the throat of the stag, 522; on the bellowing of stags, 526.
 * Macropus, courtship of, 341.
 * Macrorhinus proboscideus, structure of the nose of, 528.
 * Magpie, power of speech of, 90; nuptial assemblies of, 406; new mates found by, 407; stealing bright objects, 413; young of the, 481; coloration of the, 493.
 * Magpies, vocal organs of the, 370.
 * Maillard, M., on the proportion of the sexes in a species of Papilio from Bourbon, 250.
 * Maine, Sir Henry, on the absorption of one tribe by another, 128; a desire for improvement not general, 132.
 * Major, Dr. C. Forsyth, on fossil Italian apes, 155; skull of Bos etruscus, 505; tusks of miocene pigs, 521.
 * Makalolo, perforation of the upper lip by the, 576.
 * Malar bone, abnormal division of, in man, 39.
 * Malay, Archipelago, marriage-customs of the savages of the, 598.
 * Malays, line of separation between the Papuans and the, 169; general beardlessness of the, 560; staining of the teeth among, 574; aversion of some, to hairs on the face, 581.
 * and Papuans, contrasted characters of, 168.
 * Male animals, struggles of, for the possession of the females, 212, 213; eagerness of, in courtship, 221, 222; generally more modified than female, 221, 223; differ in the, same way from females and young, 232.
 * characters, developed in females, 227; transfer of, to female birds, 471.
 * , sedentary, of a hymenopterous parasite, 221.
 * Malefactors, 137.
 * Males, presence of rudimentary female organs in, 162.
 * and females, comparative numbers of, 213, 215; comparative mortality of, while young, 216.
 * Malherbe, on the woodpeckers, 458.
 * Mallotus peronii, 331.
 * villosus, 331.
 * Malthus, T., on the rate of increase of population, 44, 45, 46.
 * Maluridæ, nidification of the, 454.
 * Malurus, young of, 485.
 * Mammæ, 208; rudimentary, in male mammals, 11, 23, 161, 162, 163; supernumerary, in women, 36; of male human subject, 37.
 * Mammalia, Prof. Owen's classification of, 148; genealogy of the, 158.