Charles Darwin's Works: The origin of species by means of natural selection...with additions and corrections from 6th and last English ed

... trifling physiological import- ance , but which are universally admitted as highly serviceable in the definition of whole groups . For instance , whether or not there is an open passage from the nostrils to the mouth , the only charac ...

... trifling physiological import- ance , but which are universally admitted as highly serviceable in the definition of whole groups . For instance , whether or not there is an open passage from the nostrils to the mouth , the only charac ...

... rudiments of membrane ; and here it is impossible to doubt , that the rudiments represent wings . Rudimentary organs some- times retain their potentiality , and are merely not deve- loped this seems to be the case with the mammæ of male ...

... rudiments of teeth can be detected in the beaks of certain embryonic birds ... rudi- ments represent wings . Rudimentary organs sometimes retain their potentiality ... hybrid offspring was much increased in size ; and this shows that the ...

... rudiments of teeth can be detected in the beaks of certain embryonic birds ... rudi- ments represent wings . Rudimentary organs sometimes retain their potentiality ... hybrid offspring was much increased in size ; and this shows that the ...

On the Origin of Species (or more completely, On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life), published on 24 November 1859, is a work of scientific literature by ...

This is a reproduction of a book published before 1923.

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... selection . In answer to a letter of mine ( published in Gard . Chron . , April 13th ) , fully acknow- ledging that Mr. Matthew had anticipated me , he with generous candour wrote a letter ( Gard . Chron . May 12th ) containing the ...

... rudiments ofmembrane; and hereitisimpossible to doubt, thatthe rudiments represent wings. Rudimentary organs ... rudiment ofthe pistil in the hybrid offspring was much increased in size; andthis shows that the rudiment and the ...

Reproduction of the original.

... điền , đổi thửa , tạo điều kiện cơ giới hoá sản xuất , đồng thời thực hiện ... hành tiết kiệm chi tiêu , tập trung ngân sách hỗ trợ cho việc khôi phục và ... văn hoá thể thao , giáo dục , đào tạo ... nhằm cung cấp nguồn lao động có chất ...

Darwin consolidated a lifetime of work in On the Origin of Species, compiling his discoveries from the voyage of the Beagle, his experiments, research and correspondence.