 | Theodosius Dobzhansky - 1982 - Počet stránok 410
...theory of natural selection as a mechanism for evolutionary change. I had two distinct objects in view; firstly to show that species had not been separately...natural selection had been the chief agent of change. . . . Some of those who admit the principle of evolution, but reject natural selection, seem to forget,... | |
 | D. S. Bendall - 1983 - Počet stránok 612
...'oversight'. In writing the Origin, Darwin said, he had been primarily concerned "... firstly, to shew that species had not been separately created, and...the direct action of the surrounding conditions'. (1 : 152-3). His excuse for his oversight was : Nevertheless. I was not able to annul the influence... | |
 | William H. Durham - 1991 - Počet stránok 658
...Darwin once wrote that his book, On the Origin of Species, had two principal goals, "firstly, to shew that species had not been separately created, and...natural selection had been the chief agent of change." (1981 [1871] 1: 152). In the preceding chapters, I have attempted to propose a theory of cultural evolution... | |
 | John Bowlby - 1992 - Počet stránok 532
...the fittest ... I may be permitted to say as some excuse, that I had two distinct objects in view, firstly, to show that species had not been separately...by the direct action of the surrounding conditions. ... If I have erred in giving to natural selection great power, which I am far from admitting, or in... | |
 | Albert Churchward - 2000 - Počet stránok 248
...etc. ; secondly, by his social qualities, which lead him to give and receive aid from his fellow-men. Natural selection had been the chief agent of change,...largely aided by the inherited effects of habit and also slightly by the direct action of the fluids of the system having altered for some special purpose... | |
 | R. J. Berry - 2003 - Počet stránok 308
...twelve years later in The Descent of Man. His declared purpose was 'first, to show that [the human] species had not been separately created, and secondly,...had been the chief agent of change, though largely guided by the inherited effects of habit, and slightly by the direct action of the surrounding conditions'... | |
 | Chauncey Wright - 2003 - Počet stránok 488
...detected in my work. I may be permitted to say, as some excuse, that I had two distinct objects in view: firstly, to show that species had not been separately created; and secondly, tliat Natural Selection had been the chief agent of change, though largely aided by the inherited effects... | |
 | Charles Darwin - 2004 - Počet stránok 764
...my work. I may be permitted to say, as some excuse, that I had two distinct objects in view: first, to show that species had not been separately created,...by the direct action of the surrounding conditions. I was not, however, able to annul the influence of my former belief, then almost universal, that each... | |
 | Richard Olson - 2008 - Počet stránok 370
...Selection Darwin articulated two distinct, though related, goals in writing The Origin of Species: "firstly, to show that species had not been separately...natural selection had been the chief agent of change." 10 To accomplish the first goal, Darwin set out initially to establish the existence of variations... | |
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I may be permitted to say, as some excuse, that I had two distinct objects in view : firstly, to show that species had not been separately created ; and, secondly, that natural selection had been the chief agent of change, though largely aided by the... 
