Contributions to the Theory of Natural Selection: A Series of EssaysMacmillan, 1871 - 384 pages Wallace noticed on expeditions to the Amazon and the Malay archipelego that mammals in Southeast Asia are more advanced than their Australian cousins. His suggestion was that the two continents had split before the better adapted mammals had evolved in Asia. The isolated Australian marsupials were able to thrive, whilst those in Asia were driven to extinction by competition from more advanced mammals. This led to his theory of natural selection, which he presented to the Linnean Society in 1858 with Charles Darwin. This volume reprints those papers presented to the Linnean Society. |
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Page 86
... Papilio hippocoon and by Diadema anthedon ; another , Danais echeria , by Pa- pilio cenea ; and in Natal a variety of the Danais is found having a white spot at the tip of wings , accom- panied by a variety of the Papilio bearing a ...
... Papilio hippocoon and by Diadema anthedon ; another , Danais echeria , by Pa- pilio cenea ; and in Natal a variety of the Danais is found having a white spot at the tip of wings , accom- panied by a variety of the Papilio bearing a ...
Page 87
... Papilio hector , a common Indian butterfly of a rich black colour spotted with crimson , is so closely copied by Papilio romulus , that the latter insect has been thought to be its female . A close examination shows , however , that it ...
... Papilio hector , a common Indian butterfly of a rich black colour spotted with crimson , is so closely copied by Papilio romulus , that the latter insect has been thought to be its female . A close examination shows , however , that it ...
Page 88
... Papilio cöon , which is unmistakeably imitated by the female tailed form of Papilio memnon . These are both from Sumatra ; but in North India P. cöon is replaced by another species , which has been named P. doubledayi , having red spots ...
... Papilio cöon , which is unmistakeably imitated by the female tailed form of Papilio memnon . These are both from Sumatra ; but in North India P. cöon is replaced by another species , which has been named P. doubledayi , having red spots ...
Page 113
... Papilio paradoxa . I have since named this interesting species Diadema anomala ( see the Transactions of the Entomological Society , 1869 , p . 285 ) . In this case , and in that of Diadema misippus , there is no difference in the ...
... Papilio paradoxa . I have since named this interesting species Diadema anomala ( see the Transactions of the Entomological Society , 1869 , p . 285 ) . In this case , and in that of Diadema misippus , there is no difference in the ...
Page 141
... Papilio , and often twice that number . No less than 130 species of the family are now known to inhabit the Archipelago , and of these ninety - six were collected by myself . Thirty species are found in Borneo , being the largest number ...
... Papilio , and often twice that number . No less than 130 species of the family are now known to inhabit the Archipelago , and of these ninety - six were collected by myself . Thirty species are found in Borneo , being the largest number ...
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Contributions to the Theory of Natural Selection: A Series of Essays ... Alfred Russel Wallace No preview available - 2018 |
Contributions to the Theory of Natural Selection: A Series of Essays Alfred Russel Wallace No preview available - 2016 |
Common terms and phrases
abundant adapted Amboyna anal valves animals antennæ appear beautiful become bees beetles believe birds Borneo brain build butterflies caterpillars causes Celebes changes character colour concealed conspicuous Crown 8vo curious Danaidæ Darwin Diphilus direction distinct Edition eggs essay exactly existence external extinct Extra fcap facts faculties favourable Fcap flowers genera genus geological groups habits Heliconidæ imitation India individuals inhabiting insects instinct islands Java larvæ Lepidoptera less Malayan male materials mental mimic mimicry mode modified Moluccas moths natural selection nectary nest never observations occur organic Origin of Species Ormenus Pammon Papilio Papilio Ulysses Papilionidæ peculiar perfect phenomena POEMS Polydorus possess present probably produced Professor protection races reason regions remarkable render resemble savage sexes sexual sexual selection shown structure Sumatra tail theory of natural Theseus tints tion trees tropical variation varied varieties whole wings young birds
Popular passages
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