Darwiniana: Essays |
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... foundation of the theory of natural selection is incomplete. We still remain very
much in the dark about the causes of variation; the apparent inheritance of
acquired characters in some cases; and the struggle for existence within the
organism, ...
... foundation of the theory of natural selection is incomplete. We still remain very
much in the dark about the causes of variation; the apparent inheritance of
acquired characters in some cases; and the struggle for existence within the
organism, ...
2 ÆäÀÌÁö
For practice varies as much as theory. Let two botanists or two zoologists
examine and describe the productions of a country, and one will pretty certainly
disagree with the other as to the number, limits, and definitions of the species into
which ...
For practice varies as much as theory. Let two botanists or two zoologists
examine and describe the productions of a country, and one will pretty certainly
disagree with the other as to the number, limits, and definitions of the species into
which ...
13 ÆäÀÌÁö
Since Lamarck's time, almost all competent naturalists have left speculations on
the origin of species to such dreamers as the author of the ¡°Vestiges,¡± by whose
well-intentioned efforts the Lamarckian theory received its final condemnation in
...
Since Lamarck's time, almost all competent naturalists have left speculations on
the origin of species to such dreamers as the author of the ¡°Vestiges,¡± by whose
well-intentioned efforts the Lamarckian theory received its final condemnation in
...
49 ÆäÀÌÁö
... to which the name of species (whether it be used in its physiological or in its
morphological sense) is given, it would have to be accounted for by any theory of
the origin of species, and every theory which could not account for it would be, ...
... to which the name of species (whether it be used in its physiological or in its
morphological sense) is given, it would have to be accounted for by any theory of
the origin of species, and every theory which could not account for it would be, ...
63 ÆäÀÌÁö
... tempt any man to follow his example. Probably not uninfluenced by these
considerations, his Catholic majesty's ConsulGeneral for Egypt kept his theories
to himself throughout a long. II THE ORIGIN OF SPECIES 63.
... tempt any man to follow his example. Probably not uninfluenced by these
considerations, his Catholic majesty's ConsulGeneral for Egypt kept his theories
to himself throughout a long. II THE ORIGIN OF SPECIES 63.
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able action adapted admit animals appears authority become believe better body breed called causes changes character common complete consider course creation cross Darwin deposited direct distinct doctrine doubt effect evidence evolution existence experiments expression fact favour force forms further germ give given groups hand horse hypothesis important influence kind knowledge known laws less living matter means mind modification natural natural selection objections observation once operation opinion organic Origin of Species parent particular persons phenomena plants position possible present principles probably produced Professor prove question races reason record relations remains remarkable respect result scientific selective breeding sense similar sort structure suppose term theory thing thought tion true variation varieties vary views whole writer