Darwiniana: EssaysAppleton, 1894 - 475페이지 |
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34 페이지
... is that of the " Ancon " or " Otter " sheep , of which a careful account is given by Colonel David Humphreys , F.R.S. , in a letter to Sir Joseph Banks , published in the " Philosophical Transactions ". 34 II THE ORIGIN OF SPECIES.
... is that of the " Ancon " or " Otter " sheep , of which a careful account is given by Colonel David Humphreys , F.R.S. , in a letter to Sir Joseph Banks , published in the " Philosophical Transactions ". 34 II THE ORIGIN OF SPECIES.
35 페이지
... Ancon ram and the ordinary sheep ; between the six - fingered and six - toed Gratio Kelleia and ordinary men . In neither case is it possible to point out any obvious reason for the appearance of. II 35 THE ORIGIN OF SPECIES.
... Ancon ram and the ordinary sheep ; between the six - fingered and six - toed Gratio Kelleia and ordinary men . In neither case is it possible to point out any obvious reason for the appearance of. II 35 THE ORIGIN OF SPECIES.
38 페이지
... Ancon sheep is , in this respect , particularly instructive . With the " cuteness " characteristic of their nation , the neighbours of the Massachusetts farmer imagined it would be an excellent thing if all his sheep were imbued with ...
... Ancon sheep is , in this respect , particularly instructive . With the " cuteness " characteristic of their nation , the neighbours of the Massachusetts farmer imagined it would be an excellent thing if all his sheep were imbued with ...
39 페이지
... Ancon sheep were obtained to interbreed with one another , it was found that the offspring was always pure Ancon . Colonel Humphreys , in fact , states that he was acquainted with only " one questionable case of a contrary nature ...
... Ancon sheep were obtained to interbreed with one another , it was found that the offspring was always pure Ancon . Colonel Humphreys , in fact , states that he was acquainted with only " one questionable case of a contrary nature ...
40 페이지
... Ancon blood by matching his Ancon ewes with any but males of the same variety , while Gratio Kelleia's sons were too far removed from the patriarchal times to intermarry with their sisters ; and his grand - children seem not to have ...
... Ancon blood by matching his Ancon ewes with any but males of the same variety , while Gratio Kelleia's sons were too far removed from the patriarchal times to intermarry with their sisters ; and his grand - children seem not to have ...
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action adapted admit Agamogenesis Ancon animalcules animals animals and plants appears biology birds body called causes character Charles Darwin course creation Crustacea Darwin Darwin's views Darwinian deposited direct doctrine of evolution doubt Dysteleology endeavour epigenesis epoch Erasmus Darwin essay evidence ex nihilo exhibited existence extinct fact favour Flourens geological germ give rise groups horse Hyæna hypothesis inorganic world inquiry kind knowledge Lamarck laws lectures less living Maillet male matter means ment Mivart modification natural selection naturalists objections observation offspring organic nature organisation Origin of Species ovum parent peculiar phenomena philosophical physiological pigeons present primitive stock principles produced Quarterly Reviewer question races reason remarkable result scientific selective breeding sensations sense special creation speculations structure Suarez substantial forms suppose Teleology tendency theory thing thought tion toes truth variation varieties vegetabilia vegetable vera causa Wallace whole