On the Origin of the Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for Life |
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Page viii
... intermediate varieties at the present day - On the nature of extinct intermediate varieties ; on their number- On the lapse of time , as inferred from the rate of denudation and of deposition - On the lapse of time as estimated by years ...
... intermediate varieties at the present day - On the nature of extinct intermediate varieties ; on their number- On the lapse of time , as inferred from the rate of denudation and of deposition - On the lapse of time as estimated by years ...
Page xii
... Intermediate varieties within the same formation . Age of the world in a habitable condition . On a monocotyledonous plant in the Cambrian formation . 402 Gaudry , Professor , on the intermediate character of the fossil mammals of ...
... Intermediate varieties within the same formation . Age of the world in a habitable condition . On a monocotyledonous plant in the Cambrian formation . 402 Gaudry , Professor , on the intermediate character of the fossil mammals of ...
Page xxii
... intermediate graduated forms . " Thus living plants and animals are not sepa- rated from the extinct by new creations , but are to be regarded as their descendants through continued reproduction . ” A well - known French botanist , M ...
... intermediate graduated forms . " Thus living plants and animals are not sepa- rated from the extinct by new creations , but are to be regarded as their descendants through continued reproduction . ” A well - known French botanist , M ...
Page 22
... intermediate between two extremely different races or species , would be very difficult . Sir J. Sebright expressly experi- mented for this object , and failed . The offspring from the first cross between two pure breeds is tolerably ...
... intermediate between two extremely different races or species , would be very difficult . Sir J. Sebright expressly experi- mented for this object , and failed . The offspring from the first cross between two pure breeds is tolerably ...
Page 31
... intermediate links in the long lines of descent , yet admit that many of our domestic races are descended from the same parents - may they not learn a lesson of caution , when they deride the idea of species in a state of nature being ...
... intermediate links in the long lines of descent , yet admit that many of our domestic races are descended from the same parents - may they not learn a lesson of caution , when they deride the idea of species in a state of nature being ...
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Common terms and phrases
accumulated adapted affinities allied species America ancient appear Asa Gray become bees believe birds breeds cause cells characters cirripedes climate closely allied colour common continuous crossed crustaceans degree difficulty distinct species divergence domestic doubt Edition eggs embryo existing exterminated extinct extremely facts favourable females fertilised fertility flowers formation forms fossil Fritz Müller Gärtner genera genus geological Glacial period gradations greater number groups of species habits Hence hermaphrodites hybrids important individuals inhabitants inherited insects instance instincts intercrossing intermediate larvæ less living males mammals manner migration modified descendants natural selection naturalists nearly nest occur oceanic islands offspring organisation parent perfect pigeons pistil pollen Post 8vo present principle probably produced progenitor racters ranked reciprocal crosses remarked resemble seeds sexual sexual selection Silurian slight South America stamens sterility structure struggle successive suppose theory tion variability variations varieties vary vols whole widely