...best climbers would escape the tigers, the worst would be rigidly destroyed. Buffon would have seen no more reason to doubt that these causes, in a thousand...produce a marked effect, and adapt the form of the wild man to obtain fruits rather * By Darwin and 'Wallace, 'Proceedings of the Linnaeaa Society,' August,...

...scarcest; they would also rear more young, which would tend to inherit these slight peculiarities. The less fleet ones would be rigidly destroyed. I can...greyhounds can be improved by selection and careful breeding*." Observation of animals in a state of nature is required to show their degree of plasticity,...

...scarcest ; they would also rear more young, which would tend to inherit these slight peculiarities. The less fleet ones would be rigidly destroyed. I can...would produce a marked effect, and adapt the form o the fox or dog to the catehing of hares instead of rabbits, than tha greyhounds con be improved by...

...D:ir\vin and Wallace, " Proceedings of the Linnœau Society,'1 August, 1858, p. 45. Buffon would have seen no more reason to doubt that these causes, in a thousand...produce a marked effect, and adapt the form of the wild man to obtain fruits rather than grains, than Darwin now believes that man can be improved by...

...scareest ; they would also rear more young, which would tend to inherit these slight peculiarities. The less fleet ones would be rigidly destroyed. I can...effect, and adapt the form of the fox or dog to the catehing of hares instead of rabbits, than that greyhounds can be improeed by selection and careful...

...scareest ; they would also rear more young, which would tend to inherit these slight peculiarities. The less fleet ones would be rigidly destroyed. I can...causes in a thousand generations would produce a marked eflVct, and adapt the form of the fox or dog to the catching of hares instead of rabbits, than that...

...scarcest ; they would also rear more young, which would tend to inherit those slight peculiarities. The less fleet ones would be rigidly destroyed. I can...greyhounds can be improved by selection and careful breeding.' ' So Geoffroy Saint-Hilaire also wrote :— ' Si ces modifications amenent des effets nuisibles,...

...scarcest ; they would also rear more young, which would tend to inherit those slight peculiarities. The less fleet ones would be rigidly destroyed. I can...greyhounds can be improved by selection and careful breeding.' ' So Geoffrey Saint-Hilaire also wrote : — ' Si ces modifications amenent des effets nuisibles,...

...scarcest ; they would also rear more young, which would tend to inherit those slight peculiarities. The less fleet ones would be rigidly destroyed. I can...thousand generations would produce a marked effect, and ad.ipt the form of the fox or dog to the catching of hares instead of rabbits, than that greyhounds...

...scarcest ; they would also rear more young, which would tend to inherit those slight peculiarities. The less fleet ones would be rigidly destroyed. I can...also wrote : — ' Si ces modifications amenent des effets nuisibles, les animaux qui les e'prouvent cessent d'exister, pour etre remplaces par d'autres,...