Contributions to the Theory of Natural Selection: A Series of Essays |
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Page vi
( read March , 1864 ) , under the title , “ On the Phenomena of Variation and
Geographical Distribution , as illustrated by the Papilionidæ of the Malayan
Region . ” The introductory part of this essay is now reprinted , omitting tables ,
references to ...
( read March , 1864 ) , under the title , “ On the Phenomena of Variation and
Geographical Distribution , as illustrated by the Papilionidæ of the Malayan
Region . ” The introductory part of this essay is now reprinted , omitting tables ,
references to ...
Page 18
... just as we now find that the places best adapted to the rapid growth and
increase of individuals also contain the greatest profusion of species and the
greatest variety of forms , - the tropics in comparison with the temperate and arctic
regions ...
... just as we now find that the places best adapted to the rapid growth and
increase of individuals also contain the greatest profusion of species and the
greatest variety of forms , - the tropics in comparison with the temperate and arctic
regions ...
Page 31
most congenial to this species , and on which it thrives best , is abundantly
distributed over a very extensive region , offering such differences of soil and
climate , that in one part or another of the area the supply never fails . The bird is
capable ...
most congenial to this species , and on which it thrives best , is abundantly
distributed over a very extensive region , offering such differences of soil and
climate , that in one part or another of the area the supply never fails . The bird is
capable ...
Page 50
... the ermine and the alpine hare change to white in winter only , because in
summer white would be more conspicuous than any other colour , and therefore
a danger rather than a protection ; but the American polar hare , inhabiting
regions of ...
... the ermine and the alpine hare change to white in winter only , because in
summer white would be more conspicuous than any other colour , and therefore
a danger rather than a protection ; but the American polar hare , inhabiting
regions of ...
Page 51
American polar hare , inhabiting regions of almost perpetual snow , is white all
the year round . Other animals inhabiting the same Northern regions do not ,
however , change colour . The sable is a good example , for throughout the
severity of ...
American polar hare , inhabiting regions of almost perpetual snow , is white all
the year round . Other animals inhabiting the same Northern regions do not ,
however , change colour . The sable is a good example , for throughout the
severity of ...
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Common terms and phrases
abundant action adapted allied animals appear beautiful become believe birds body build butterflies causes Celebes changes character closely colour common comparatively complete concealment consider conspicuous continually direct distinct doubt Edition equally evidence exactly example existence explained facts female flight flowers frequently further genera genus give greater groups habits imitation important increase India individuals inhabiting insects interesting islands Java kind known less limited living male marked materials means mimicry modifications moths natural selection necessary nest never objects observations occur organic original Papilio perfect period phenomena possess present probably produced protection race reason region remarkable render resemble result savage seems seen sexes shown similar species structure supposed tail theory tints tion trees tropical true universe variation varied varieties various whole wings
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Bibliographic information
| Title | Contributions to the Theory of Natural Selection: A Series of Essays Contributions to the Theory of Natural Selection: A Series of Essays, Alfred Russel Wallace Marilee E. Thomas and Robert C. Thomas Science and Related Subjects Collection |
| Author | Alfred Russel Wallace |
| Edition | 2 |
| Publisher | Macmillan and Company, 1870 |
| Original from | Oxford University |
| Digitized | 8 mai 2006 |
| Length | 384 pages |
| Export Citation | BiBTeX EndNote RefMan |