 I formerly entertained, namely, that each species has been independently created, is erroneous. I am fully convinced that species are not immutable; but that those belonging to what are called the same genera are lineal descendants of some other and generally...  The North British review - Page 4591860Full view - About this book
 | John Michels (Journalist) - Science - 1887 - 352 pages
...encounter in their studies. Darwin has distinctly said in his first edition of the ' Origin of Species,' " I am convinced that natural selection has been the main but not the exclusive means of modification ; " and in his sixth edition of the same work, in quoting these... | |
 | Roscoe Lorenzo Eames - Shorthand - 1883 - 256 pages
...immutable, but that those which belong to the same genera are really descended from the same species. I am convinced that natural selection has been the main, but not the exclusive means of modification." Now, here is the grand proposition or declaration of variability... | |
 | John Michels (Journalist) - Science - 1887 - 470 pages
...encounter in their studies. Darwin has distinctly said in his first edition of the ' Origin of Species,' " I am convinced that natural selection has been the main but not the exclusive means of modification ; " and in his sixth edition of the same work, in quoting these... | |
 | Charles Darwin - Evolution - 1884 - 396 pages
...most conspicuous position — namely, at the close of the introduction — the following words : " I am, convinced that natural selection has been the main but not the exclusive means of modification-" This has been of no avail. Great is the power of steady misrepresentation... | |
 | James Samuelson, Sir William Crookes - Science - 1884 - 798 pages
...most conspicuous position — \ namely, at the close of the introduction — the following words : " I am convinced that natural selection has ' been the main, but not the exclusive, means of modification.' " (p. 421). Of course, by totally ignoring the ancillary factors... | |
 | Science - 1884 - 828 pages
...most conspicuous position — namely, at the close of the introduction — the following words : " I am convinced that natural selection has ' been the main, but not the exclusive, means of modification.' " (p. 421). Of course, by totally ignoring the ancillary factors... | |
 | Edward Drinker Cope - Evolution - 1886 - 558 pages
...increase, predominate, and ultimately become the centers of new variation. "I am convinced," says Darwin, "that natural selection has been the main, but not exclusive, means of modification." That it has been to a large extent the means of preservation of those structures known as specific,... | |
 | American Association for the Advancement of Science - Science - 1888 - 478 pages
...encounter in their studies. Darwin has distinctly said in his first edition of the "Origin of Species," "I am convinced that natural selection has been the main but not the exciusive means of modification ;" and in his sixth edition of the same work, in quoting these... | |
 | Science - 1888 - 920 pages
...encounter in their studies. Darwin has distinctly said in his first edition of the " Origin of Species," " I am convinced that natural selection has been the main but not the exclusive means of modification "; and in his sixth edition of the same work, in quoting these... | |
 | American Association for the Advancement of Science - American periodicals - 1888 - 474 pages
...encounter in their studies. Darwin has distinctly said in his first edition of the "Origin of Species," "I am convinced that natural selection has been the main but not the exclusive means of modification ;" and in his sixth edition of the same work, in quoting these... | |
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