The Method of Darwin: A Study in Scientific MethodA. C. McClurg, 1896 - 232 páginas |
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Página 41
... cause from a study of the facts . As many hypotheses as possible should be invented to explain the facts under investigation , and as fast as possible , as new light comes , other hypotheses should be added , in order that the mind may ...
... cause from a study of the facts . As many hypotheses as possible should be invented to explain the facts under investigation , and as fast as possible , as new light comes , other hypotheses should be added , in order that the mind may ...
Página 45
... cause are necessarily referred , before the advent of the new hypothesis , to very various and unrelated causes . On the question of the origin of species there were really two hypotheses , creation and descent , when Darwin took hold ...
... cause are necessarily referred , before the advent of the new hypothesis , to very various and unrelated causes . On the question of the origin of species there were really two hypotheses , creation and descent , when Darwin took hold ...
Página 52
... cause , the lurk- ing place of a principle . A typical example of his treatment of little exceptional facts is that of " Hero , " the un- usual plant in one of the later generations of self - fertilized plants of Ipomea purpurea.1 It ...
... cause , the lurk- ing place of a principle . A typical example of his treatment of little exceptional facts is that of " Hero , " the un- usual plant in one of the later generations of self - fertilized plants of Ipomea purpurea.1 It ...
Página 56
... cause in order to note the proportionate variation in the amount of the effect ; and where he had to depend upon observation alone , he made strenuous efforts to connect extreme instances by gradations of character . Thus , he and his ...
... cause in order to note the proportionate variation in the amount of the effect ; and where he had to depend upon observation alone , he made strenuous efforts to connect extreme instances by gradations of character . Thus , he and his ...
Página 62
... cause of the modification of species , he said , " Believing that it is always best to study some special group , I have , after deliberation , taken up domestic pigeons . " With other ends in view , pigeons might be studied in ...
... cause of the modification of species , he said , " Believing that it is always best to study some special group , I have , after deliberation , taken up domestic pigeons . " With other ends in view , pigeons might be studied in ...
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Términos y frases comunes
A. C. MCCLURG adaptations analogy Animals and Plants belief biological cause character circumnutation Cirripedia classification climbing plants colored conclusion consequences Coral Reefs cowslip cross-fertilization Darwin Darwin's theories deductive dence developed Different Forms difficulty discovery discussion doctrine Drosera Effects of Cross electric fishes electric organs example exhaust experiments explanation expression Fertilization of Orchids flower-peduncles Flowers on Plants Forms of Flowers Francis Darwin furnished gemmules hermaphrodite hypothesis Ibid illustrated important induction inference inheritance Insectivorous Plants insects interesting investigation islands labellum Letters logical history logical processes long-styled Malthus ment mind modified Movement in Plants muscles natural selection nectar observation ocelli orchids Origin of Species Pangenesis pistils point of view pollen Power of Movement principle of natural probably problem proboscides proved radicles reasoning relation remarkable scientific method seedlings seeds self-fertilized sensitiveness sexes sion stamens stigma structure theories of descent things tigation tion true truth tufaceous verified
Pasajes populares
Página 37 - I have steadily endeavoured to keep my mind free so as to give up any hypothesis, however much beloved (and I cannot resist forming one on every subject), as soon as facts are shown to be opposed to it.
Página 47 - I think that I am superior to the common run of men in noticing things which easily escape attention, and in observing them carefully.
Página 89 - This wonderful relationship in the same continent between the dead and the living, will, I do not doubt, hereafter throw more light on the appearance of organic beings on our earth and their disappearance from it than any other class of facts.
Página 216 - I worked on true Baconian principles, and without any theory collected facts on a wholesale scale...
Página 157 - If it could be proved that any part of the structure of any one species had been formed for the exclusive good of another species, it would annihilate my theory, for such could not have been produced through natural selection.
Página 217 - I soon perceived that selection was the keystone of man's success in making useful races of animals and plants. But how selection could be applied to organisms living in a state of nature remained for some time a mystery to nie. "In October 1838, that is, fifteen months after I had begun my systematic enquiry, I happened to read for amusement 'Malthus on Population,' and being well prepared to appreciate the struggle for existence which everywhere goes on from long-continued observation of the habits...
Página 124 - Looking back, I think it was more difficult to see what the problems were than to solve them, so far as I have succeeded in doing, and this seems to me rather curious.
Página 28 - Everything about which I thought or read was made to bear directly on what I had seen or was likely to see ; and this habit of mind was continued during the five years of the voyage. I feel sure that it was this training which has enabled me to do whatever I have done in science.
Página 15 - Glory is like a circle in the water, Which never ceaseth to enlarge itself, Till, by broad spreading, it disperse to nought.