Are the Effects of Use and Disuse Inherited?: An Examination of the View Held by Spencer and DarwinMacmillan, 1890 - 156 páginas |
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Página xi
... MUTILATIONS 101-118 THE MOTMOT'S TAIL . • OTHER INHERITED INJURIES MENTIONED BY DARWIN . QUASI - INHERITANCE · ΙΟΙ ΙΙΟ III 116 MISCELLANEOUS CONSIDERATIONS 119-143 TRUE RELATION OF PARENTS AND OFFSPRING 119 INVERSE INHERITANCE . EARLY ...
... MUTILATIONS 101-118 THE MOTMOT'S TAIL . • OTHER INHERITED INJURIES MENTIONED BY DARWIN . QUASI - INHERITANCE · ΙΟΙ ΙΙΟ III 116 MISCELLANEOUS CONSIDERATIONS 119-143 TRUE RELATION OF PARENTS AND OFFSPRING 119 INVERSE INHERITANCE . EARLY ...
Página 35
... mutilating the nervous system of a guinea - pig is occasionally inherited may be a fact of " considerable weight , " or on the other hand it may be entirely irrelevant . Cases of this kind strike one as peculiar exceptions rather than ...
... mutilating the nervous system of a guinea - pig is occasionally inherited may be a fact of " considerable weight , " or on the other hand it may be entirely irrelevant . Cases of this kind strike one as peculiar exceptions rather than ...
Página 36
... mutilation which it usually accompanies , but which Mr. Spencer does not mention . INHERITED INSANITY AND NERVOUS DISORDERS . Mr. Spencer infers that , because insanity is usually hereditary , and insanity can be artificially produced ...
... mutilation which it usually accompanies , but which Mr. Spencer does not mention . INHERITED INSANITY AND NERVOUS DISORDERS . Mr. Spencer infers that , because insanity is usually hereditary , and insanity can be artificially produced ...
Página 100
... in effecting com- paratively slight changes , when great and striking modifications are effected without any such aid ? INHERITED INJURIES . INHERITED MUTILATIONS . THE almost universal non 100 ARE THE EFFECTS OF USE INHERITED ?
... in effecting com- paratively slight changes , when great and striking modifications are effected without any such aid ? INHERITED INJURIES . INHERITED MUTILATIONS . THE almost universal non 100 ARE THE EFFECTS OF USE INHERITED ?
Página 102
... mutilated condition of parents who had gnawed off their own gangrenous toes when anæsthetic through the sciatic nerve having been divided.2 1 A very able anatomist of my acquaintance denies the inheritance of mutilations and injuries ...
... mutilated condition of parents who had gnawed off their own gangrenous toes when anæsthetic through the sciatic nerve having been divided.2 1 A very able anatomist of my acquaintance denies the inheritance of mutilations and injuries ...
Otras ediciones - Ver todas
Términos y frases comunes
acquired characters acquired modifications alleged Animals and Plants appears artificial selection atavism attributed Aylesbury duck become birds bones breeds cause cent civilization concomitant variation Contemporary Review Crown 8vo cumulative Darwin Descent deterioration diminished diminution diseases domestic animals domestic rabbit duck effects of ancestral effects of disuse enlarged epilepsy evidence evil explanation eyes fact factor of evolution fancy pigeons father favoured Francis Darwin Francis Galton Galton gemmules guinea-pigs heredity Illustrations improvement incisors increased individual inherited effects inherited injuries inherited mutilations insects instances instincts jaws Lamarckian leg-bones legs lengthened muscles natural or artificial natural selection nervous neuter offspring organs Origin of Species pangenesis panmixia parents pigeons Plants under Domestication quasi-inheritance race Ray Lankester reduced wings relative reproductive elements sexual selection shortened Spencer spite of disuse spontaneous variations sternum structure suppose tameness teeth tend tendency theory thickened sole tion toes transmit true inheritance use-inheritance Variation of Animals weight Weismann wing-bones
Pasajes populares
Página 26 - For peculiar habits confined to the workers or sterile females, however long they might be followed, could not possibly affect the males and fertile females, which alone leave descendants. I am surprised that no one has hitherto advanced this demonstrative case of neuter insects, against the well-known doctrine of inherited habit, as advanced by Lamarck.