On the Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for Life |
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Page 9
... ON THE IMPERFECTION OF THE GEOLOGICAL RECORD On the absence of intermediate varieties at the present day - On the nature of extinct intermediate varieties ; on their number- 73 — A * On the vast lapse of time , as inferred from CONTENTS 9.
... ON THE IMPERFECTION OF THE GEOLOGICAL RECORD On the absence of intermediate varieties at the present day - On the nature of extinct intermediate varieties ; on their number- 73 — A * On the vast lapse of time , as inferred from CONTENTS 9.
Page 10
... geological formations - On the absence of intermediate varieties in any one formation - On the sudden appearance of groups of species - On their sudden appearance in the lowest known fossiliferous strata 245 CHAPTER X ON THE GEOLOGICAL ...
... geological formations - On the absence of intermediate varieties in any one formation - On the sudden appearance of groups of species - On their sudden appearance in the lowest known fossiliferous strata 245 CHAPTER X ON THE GEOLOGICAL ...
Page 13
... geological relations of the present to the past inhabitants of that continent . These facts , as will be seen in the latter chapters of this volume , seemed to throw some light on the origin of species - that mystery of mys- teries , as ...
... geological relations of the present to the past inhabitants of that continent . These facts , as will be seen in the latter chapters of this volume , seemed to throw some light on the origin of species - that mystery of mys- teries , as ...
Page 14
... geological succes- sion , and other such facts , might come to the conclusion that each species had not been independently created , but had descended , like varieties , from other species . Nevertheless , such a conclusion , even if ...
... geological succes- sion , and other such facts , might come to the conclusion that each species had not been independently created , but had descended , like varieties , from other species . Nevertheless , such a conclusion , even if ...
Page 16
... Geological Record . In the next chapter I shall consider the geological succession of organic beings throughout time ; in the eleventh and twelfth , their geographical distribution throughout space ; in the thirteenth , their ...
... Geological Record . In the next chapter I shall consider the geological succession of organic beings throughout time ; in the eleventh and twelfth , their geographical distribution throughout space ; in the thirteenth , their ...
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Common terms and phrases
accumulated adapted affinities allied species America analogous ancient animals appear archipelago become bees believe birds breeds cause cells characters cirripedes climate closely allied colour continuous crossed crustaceans degree difficulty distinct species divergence domestic doubt embryo endemic existing exterminated extinct extremely facts favourable fertilised fertility flowers formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hybrids hybrids produced important increase individuals inhabitants inherited insects instance instincts intercrossing intermediate larvæ laws less living males mammals manner migration modification modified descendants natural selection naturalists nearly nest occasionally offspring organic organisation origin of species perfect pigeons plants pollen present principle probably produced progenitor ranked reciprocal crosses remarked resemble rock-pigeon rudimentary seeds sexual sexual selection Silurian slight sometimes South America sterility structure struggle successive supposed swimbladder tend theory variability variations varieties vary whole widely