The Action of Natural Selection on ManC.C. Chatfield & Company, 1871 - 54 pages |
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Page 7
... organs ; in those subtle peculiarities which produce differences of constitution , as well as in those still more subtle ones which lead to modifications of mind and character . In other words , in every pos- VERI TAS HARVARD COLLEGE ...
... organs ; in those subtle peculiarities which produce differences of constitution , as well as in those still more subtle ones which lead to modifications of mind and character . In other words , in every pos- VERI TAS HARVARD COLLEGE ...
Page 7
Alfred Russel Wallace. VERI TAS HARVARD COLLEGE LIBRARY sible way , in every organ and in every function.
Alfred Russel Wallace. VERI TAS HARVARD COLLEGE LIBRARY sible way , in every organ and in every function.
Page 8
Alfred Russel Wallace. sible way , in every organ and in every function , indi- viduals of the same stock vary . Now , health , strength , and long life are the results of a harmony between the individual and the universe that surrounds ...
Alfred Russel Wallace. sible way , in every organ and in every function , indi- viduals of the same stock vary . Now , health , strength , and long life are the results of a harmony between the individual and the universe that surrounds ...
Page 11
... organs , produce the same effects as among animals . Some division of labor takes place ; the swiftest hunt , the less active fish , or gather fruits ; food is , to some extent , exchanged or divided . The action of natural selection is ...
... organs , produce the same effects as among animals . Some division of labor takes place ; the swiftest hunt , the less active fish , or gather fruits ; food is , to some extent , exchanged or divided . The action of natural selection is ...
Page 12
... and by its action these organs gradually become adapted to their new requirements . But man , under similar circumstances , does not require longer nails or teeth , greater bodily strength or swiftness . He makes ( 12 )
... and by its action these organs gradually become adapted to their new requirements . But man , under similar circumstances , does not require longer nails or teeth , greater bodily strength or swiftness . He makes ( 12 )
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Common terms and phrases
abstract action of natural advance ages animal and vegetable Australian average believe body BOOK DUE brain brutes capacity Chimpanzee climate color correlated cranium cubic inches Darwin degree DEVELOPMENT OF HUMAN difference division of labor earth enable Eocene epoch evidence extent extinct fact faculties became fittest form and structure geological epoch give Gorilla greater habits of savages hair hairy covering harmony higher human race individual influence intel intellectual and moral intelligence less locomotion lower animals lowest savages mammalia man's mankind mental and moral mental faculties mental organization mental power mind Miocene modified moral sense natural selection North America orang-utan origin Origin of Species peculiarities perfect period physical possesses pre-historic prehensile probably produce quadrumana render require resemblance Santals seems selec sexual selection skin skull species struggle for existence superior surrounding universe survival Tasmanians theory of natural tion tribe truth unchanged useless utility variations viduals warmer weapons
Popular passages
Page 25 - ... still acting on his mental organization, must ever lead to the more perfect adaptation of man's higher faculties to the conditions of surrounding nature, and to the exigencies of the social state. While his external form will probably ever remain unchanged, except in the development of that perfect beauty which results from...
Page 21 - Though less capable than most other animals of living on the herbs and the fruits that unaided nature supplies, this wonderful faculty taught him to govern and direct nature to his own benefit, and make her produce food for him, when and where he pleased. From the moment when the first skin was used as a covering, when the first rude spear was formed to assist in the...
Page 31 - And assuredly, there is no mark of degradation about any part of its structure. It is, in fact, a fair average human skull, which might have belonged to a philosopher, or might have contained the thoughtless brains of a savage.
Page 21 - natural selection ' himself, but he is actually able to take away some of that power from Nature which, before his appearance, she universally exercised. "We can anticipate the time when the earth will produce only cultivated plants and domestic animals; when man's selection shall have supplanted
Page 11 - ... while the form and structure of his body will remain unchanged. So when a glacial epoch comes on, some animals must acquire warmer fur, or a covering of fat, or else die of cold. Those best clothed by nature are, therefore, preserved by natural selection. Man, under the same circumstances, will make himself warmer clothing, and build better houses; and the necessity of doing this will react upon his mental organisation and social condition - will advance them while his natural body remains naked...
Page 51 - A superior intelligence has guided the development of man in a definite direction and for a special purpose, just as man guides the development of many animal and vegetable forms...
Page 10 - ... self-restraint in present appetites ; and that intelligent foresight which prepares for the future, are all qualities that from their earliest appearance must have been for the benefit of each community, and would therefore have become the subjects of natural selection.
Page 19 - ... less universal than at present. Besides, Europe was in a great measure submerged during the tertiary epoch ; and though its scattered islands may have been uninhabited by man, it by no means follows that he did not at the same time exist in warm or tropical continents. If geologists can point out to us the most extensive land in the warmer regions of the earth, which has not been submerged since Eocene or Miocene times, it is there that we may expect to find some traces of the very early progenitors...
Page 11 - Natural selection' will now act upon the stomach and intestines, and all their individual variations will be taken advantage of to modify the race into harmony with its new food. In many cases, however, it is probable that this cannot be done. The internal organs may not vary quick enough, and then the animal will decrease- in numbers and finally become extinct. But man guards himself from such accidents by superintending and guiding the operations of nature. He plants the seed of his most agreeable...
Page 22 - natural selection " himself, but he is actually able to take away some of that power from nature which before his appearance she universally exercised. We can anticipate the time when the earth will produce only cultivated plants and domestic animals ; when man's selection shall have supplanted