Contributions to the Theory of Natural Selection: A Series of Essays |
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Page 2
... the first appearance of animals now existing can in many cases be traced ,
their numbers gradually increasing in the more recent formations , while other
species continually die out and disappear ON THE LAW WHICH HAS
REGULATED.
... the first appearance of animals now existing can in many cases be traced ,
their numbers gradually increasing in the more recent formations , while other
species continually die out and disappear ON THE LAW WHICH HAS
REGULATED.
Page 3
cent formations , while other species continually die out and disappear , so that
the present condition of the organic world is clearly derived by a natural process
of gradual extinction and creation of species from that of the latest geological ...
cent formations , while other species continually die out and disappear , so that
the present condition of the organic world is clearly derived by a natural process
of gradual extinction and creation of species from that of the latest geological ...
Page 16
... while the Gasteropods and Bivalves have acquired an immense
preponderance . In the long series of changes the earth has undergone , the
process of peopling it with organic beings has been continually going on , and
whenever any of ...
... while the Gasteropods and Bivalves have acquired an immense
preponderance . In the long series of changes the earth has undergone , the
process of peopling it with organic beings has been continually going on , and
whenever any of ...
Page 17
been continually going on , and whenever any of the higher groups have become
nearly or quite extinct , the lower forms which have better resisted the modified
physical conditions have served as the antitypes on which to found the new ...
been continually going on , and whenever any of the higher groups have become
nearly or quite extinct , the lower forms which have better resisted the modified
physical conditions have served as the antitypes on which to found the new ...
Page 27
Equally general , however , is the belief in what are called “ permanent or true
varieties , ” - races of animals which continually propagate their like , but which
differ so slightly ( although constantly ) from some other race , that the one is ...
Equally general , however , is the belief in what are called “ permanent or true
varieties , ” - races of animals which continually propagate their like , but which
differ so slightly ( although constantly ) from some other race , that the one is ...
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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 |