Are the Effects of Use and Disuse Inherited?: An Examination of the View Held by Spencer and DarwinMacmillan, 1890 - 156 páginas |
Dentro del libro
Resultados 1-5 de 15
Página vii
... their criticisms of social and political laws and institutions and customs and ideas on the basis of the Darwinian law rather than on that of Lamarck . Looking forward to the hope that the human race may PREFACE . vii.
... their criticisms of social and political laws and institutions and customs and ideas on the basis of the Darwinian law rather than on that of Lamarck . Looking forward to the hope that the human race may PREFACE . vii.
Página viii
... human race may become consciously and increasingly master of itself and of its destiny , and re- cognizing the Darwinian principle of the selection of the fittest as the only means of preventing the moral and physical degeneracy which ...
... human race may become consciously and increasingly master of itself and of its destiny , and re- cognizing the Darwinian principle of the selection of the fittest as the only means of preventing the moral and physical degeneracy which ...
Página 1
... deeper interest to the thoughtful philanthro- pist who desires . to ensure the permanent welfare and happiness of the human race . So profoundly important , in fact , are the moral , 352 B IMPORTANCE INQUIRY AND BEARING OF PAGE.
... deeper interest to the thoughtful philanthro- pist who desires . to ensure the permanent welfare and happiness of the human race . So profoundly important , in fact , are the moral , 352 B IMPORTANCE INQUIRY AND BEARING OF PAGE.
Página 7
... their variations , and not merely selected or favoured individuals . See his Essays on Here- dity , & c . , p . 90 ( Clarendon Press ) . Sexual selection powerfully affects the human face , and so DIMINUTION OF THE JAWS . 7.
... their variations , and not merely selected or favoured individuals . See his Essays on Here- dity , & c . , p . 90 ( Clarendon Press ) . Sexual selection powerfully affects the human face , and so DIMINUTION OF THE JAWS . 7.
Página 8
... human face , and so must affect the jaws - as is shown by the differences between male and female jaws , and by the relative lightness and smallness of the latter , especially in the higher races . Human preference , both sexual and ...
... human face , and so must affect the jaws - as is shown by the differences between male and female jaws , and by the relative lightness and smallness of the latter , especially in the higher races . Human preference , both sexual and ...
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.