TABLE OF THE PRINCIPAL ADDITIONS AND CORRECTIONS TO THE PRESENT EDITION. (Discussion on the rudimentary points in the human ear revised. Cases of men born with hairy bodies. Mantegazza on the last molar tooth in man. mool quical Bianconi on homologous structures, as ex- Intelligence in a baboon. Sense of humour in dogs. Further facts on imitation in man aud animals. Reasoning power in the lower animals. Acquisition of experience by animals. Power of abstraction in animals. (Power of forming concepts in relation to language. Pleasure from certain sounds, colours, and forms. Fidelity in the elephant. Galton on gregariousness of cattle. Parental affection. Persistence of enmity and hatred. (Nature and strength of shame, regret, and remorse. Suicide amongst savages. The motives of conduct. Selection, as applied to primeval man. Supernumerary mamma and digits. (Further cases of muscles proper to animals appearing in man. Broca: average capacity of skull diminished by the preservation of the inferior members of society. 180 143 193 151 208. note. 161, note 209 163 239 245 195-6 Belt on advantages to man from his hairlessness. Disappearance of the tail in man and certain monkeys. Injurious forms of selection in civilised nations. (Indolence of man, when free from a struggle for existence. Gorilla protecting himself from rain with his hands. Hermaphroditism in fish. Rudimentary mammæ in male mammals. 188-190 (Changed conditions lessen fertility and cause ill-health amongst savages. (Darkness of skin a protection against the sun. Note by Professor Huxley on the development of the brain in man and apes. (Special organs of male parasitic worms for holding the female. (Greater variability of male than female; direct action of the environment in causing differences between the sexes. Period of development of protuberances on birds' heads determines their transmission to one or both sexes. Causes of excess of male births. Bright colours of lowly organised animals. Cause of smallness of male spiders. Use of phosphorescence of the glow-worm. Use of bright colours to Hemiptera (bugs). (Development of stridulating apparatus in (Hermann Müller on sexual differences of bees. Sounds produced by moths. Display of beauty by butterflies. (Female butterflies, taking the more active part in courtship, brighter than their males. (Further cases of mimicry in butterflies and moths. (Cause of bright and diversified colours of caterpillars. 2 331 14 341 23 347 26 349 30 352 32 353 36 357 72 383 91 398 108 411 Brush-like scales of male Mallotus. Dufossé on the sounds made by fishes. Marshall on protuberances on birds' heads. Attachment between paired birds. Female pigeon rejecting certain males. (Albino birds not finding partners, in a state of nature. Direct action of climate on birds' colours. (Further facts on the ocelli in the Argus pheasant. Display by humming birds in courtship. (Cases with pigeons of colour transmitted to one sex alone. Taste for the beautiful permament enough to allow of sexual selection with the lower animals. (Horns of sheep originally a masculine character. Castration affecting horns of animals. 513-514 Prong-horned variety of Cervus virginianus. THE EVIDENCE OF THE DESCENT OF MAN FROM SOME LOWER FORM. Nature of the evidence bearing on the origin of man-Homologous structures in man and the lower animals-Miscellaneous points of correspondence - Development - Rudimentary structures, muscles, sense-organs, hair, bones, reproductive organs, &c.— The bearing of these three great classes of facts on the origin of ON THE MANNER OF DEVELOPMENT OF MAN FROM SOME LOWER Variability of body and mind in man-Inheritance-Causes of variability-Laws of variation the same in man as in the lower animals-Direct action of the conditions of life-Effects of the increased use and disuse of parts-Arrested development-Re- version-Correlated variation-Rate of Increase-Checks to increase-Natural selection-Man the most dominant animal in the world-Importance of his corporeal structure-The causes which have led to his becoming erect-Consequent changes of structure-Decrease in size of the canine teeth-Increased size and altered shape of the skull--Nakedness-Absence of a tail- |