A New Theory of the Origin of SpeciesFowler & Wells, 1883 - Всего страниц: 272 |
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Стр. 5
... Sexual Selection - Esthetic Taste in Animals - How Man Be- came Denuded of Hair .... CHAPTER IV . - THEORIES - Darwinian ( Continued ) -Laws of Heredity - Secondary Sexual Distinctions - Origin of the Sexes , and their Distinctions ...
... Sexual Selection - Esthetic Taste in Animals - How Man Be- came Denuded of Hair .... CHAPTER IV . - THEORIES - Darwinian ( Continued ) -Laws of Heredity - Secondary Sexual Distinctions - Origin of the Sexes , and their Distinctions ...
Стр. 52
... in a much larger amount of the estate of the decedent , than is before enumerated in the form of bequests and legacies . CHAPTER III . THEORIES . Sexual Selection . Esthetic Taste 52 A New Theory of the Origin of Species .
... in a much larger amount of the estate of the decedent , than is before enumerated in the form of bequests and legacies . CHAPTER III . THEORIES . Sexual Selection . Esthetic Taste 52 A New Theory of the Origin of Species .
Стр. 53
... Sexual Selection " is briefly referred to as a struggle between the males of polygamous animals for the possession of the females , whereby the progeny of the victors were increased , and that of the vanquished dim- inished ; and in ...
... Sexual Selection " is briefly referred to as a struggle between the males of polygamous animals for the possession of the females , whereby the progeny of the victors were increased , and that of the vanquished dim- inished ; and in ...
Стр. 54
... sexual differences the same in form , size and color . The foundation of the theory , so far as it re- lates to the choice of mates , rests wholly upon the idea , that the females among animals have been and are endowed with the ...
... sexual differences the same in form , size and color . The foundation of the theory , so far as it re- lates to the choice of mates , rests wholly upon the idea , that the females among animals have been and are endowed with the ...
Стр. 56
... sexual selection- that is , the selection by the females of the most beautiful males . " ( id . 75 ) . But man selects with a knowledge of the effect which he desires to produce . Does he mean that the cases are parallel to this extent ...
... sexual selection- that is , the selection by the females of the most beautiful males . " ( id . 75 ) . But man selects with a knowledge of the effect which he desires to produce . Does he mean that the cases are parallel to this extent ...
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Часто встречающиеся слова и выражения
According adaptation advance animals appear Archegosaurus Averroes birds birth body brain capacity Carboniferous Caucasian race causes cells cents changes Chimpanzee civilized color conclusion connection created creation creative Creator Darwin definite Deity descent developed distinct earth embryo ence Eocene evidence evolution existence fact feet female fishes force forms germ Gorilla gradually Haeckel hair higher horse human Huxley hypothesis idea Illustrated improvement inference instance instinct intelligence kind language large numbers living lower lowest male mammals manifested marsupial matter ment mental Mesozoic mind Miocene modern Molluscs moner monkey natural selection offspring organic origin of species ovum peculiar period phenomena Phrenology physical plants Plesiosaurus Plio Pliocene polygamy primitive principle produced Prof progenitor Protozoa question races reason regarded relation remains reptile resemble result savage says sexes sexual selection Silurian skull Spencer stone age structure supposed teleology theory tion tribes true universe vertebrate
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Стр. 27 - ... and which I formerly entertained, namely, that each species has been independently created, is erroneous. I am fully convinced that species are not immutable; but that those belonging to what are called the same genera are lineal descendants of some other and generally extinct species, in the same manner as the acknowledged varieties of any one species are the descendants of that species. Furthermore, I am convinced that Natural Selection has been the main, but not exclusive, means of modification.
Стр. 215 - The Principles of Physiology, applied to the Preservation of Health, and to the Improvement of Physical and Mental Education.
Стр. 206 - There can be no doubt that the difference between the mind of the lowest man and that of the highest animal is immense. An anthropomorphous ape, if he could take a dispassionate view of his own case, would admit that though he could form an artful plan to plunder a garden — though he could use stones for fighting or for breaking open nuts, yet that the thought of fashioning a stone into a tool was quite beyond his scope. Still less, as he would admit, could he follow out a train of metaphysical...
Стр. 209 - It is generally acknowledged that all organic beings have been formed on two great laws — Unity of Type, and the Conditions of Existence. By unity of type is meant that fundamental agreement in structure which we see in organic beings of the same class, and which is quite independent of their habits of life.
Стр. 10 - From these remarks it will be seen that I look at the term species, as one arbitrarily given for the sake of convenience to a set of individuals closely resembling each other, and that it does not essentially differ from the term variety, which is given to less distinct and more fluctuating forms.
Стр. 26 - Although much remains obscure, and will long remain obscure, I can entertain no doubt, after the most deliberate study and dispassionate judgment of which I am capable, that the view which most naturalists until recently entertained, and which I formerly entertained, namely, that each species has been independently created, is erroneous. I am fully convinced that species are not immutable...
Стр. 215 - TREATISE ON FOOD AND DIET: With Observations on the Dietetical Regimen suited for Disordered States of the Digestive Organs ; and an Account of the Dietaries of some of the principal Metropolitan and other Establishments for Paupers, Lunatics, Criminals, Children, the Sick, &c. By JON. PEREIRA, MDFRS & LS Author of
Стр. 195 - The reply is not doubtful for a moment, and has not been doubtful any time these thirty years. Without question, the mode of origin and the early stages of the development of man are identical with those of the animals immediately below him in the scale : — without a doubt, in these respects, he is far nearer the Apes, than the Apes are to the Dog.
Стр. 47 - I had not formerly sufficiently considered the existence of many structures which appear to be, as far as we can judge, neither beneficial nor injurious ; and this I believe to be one of the greatest oversights as yet detected in my work.
Стр. 68 - If such do occur, can we doubt (remembering that many more individuals are born than can possibly survive) that individuals having any advantage, however slight, over others, would have the best chance of surviving and of procreating their kind? On the other hand, we may feel sure that any variation in the least degree injurious would be rigidly destroyed. This preservation of favourable individual differences and variations, and the destruction of those which are injurious, I have called Natural...