...sets up a shadowy doctrine of transmutation, and all his reasoning ends in this grand conclusion : " I believe that animals have descended from at most...four or five progenitors, and plants from an equal number. Analogy would lead me one step further, namely, to the belief that all animals and plants have...

...cette lutte (1) Darwin, On the Oriijin of Specîes, London, 1861, p. 518 : « I believe that animais have descended from at most only four or five progenitors, and plants from an equal or lesser number. — Analogy would lead me one step farther, namely to the belief that ail animais and plants have descended...

...plainly show that an early progenitor has the organ in a fully developed state." " I believe," says he, "that animals have descended from, at most, only four or five progenitors, and plants from an equal or a lesser number." "Analogy would lead me one step further — viz., to the belief that all animals...

...which the countless forms of animal and vegetable life are distinguished from each other. All existing animals have descended from at most only four or five...progenitors, and plants from an equal or lesser number. Analogy would even lead to the inference that " all the organic beings which have ever lived on this...

...be found. Their place has to be supplied by conjecture. Thus eg, Mr. Darwin says, " I cannot doubt that the theory of descent with modification embraces all the members of the same class."" And again: "I can indeed hardly doubt that all vertebrate animals having true lungs, have descended,...

...reply from a being sprung only from mucus. Mr. Darwin's faith is modified differently ; he says, ' I believe that animals have descended from at most...progenitors, and plants from an equal or lesser number.'* This is pure and simple faith with which reason has nothing to do, and is not sustained by an approach...

...own showing, merely a fanciful hypothesis. He accounts for the origin of creation as follows : — " I believe that animals have descended from at most...or five progenitors, and plants, from an equal or less number. Therefore I should infer, from analogy, that probably all the organic beings which have...

...pattern, and at an embryonic age the species closely resemble 'each other. Therefore I cannot doubt that the theory of descent with modification embraces...progenitors, and plants from an equal or lesser number. " Analogy would lead me one step farther, namely, to the belief that all animals and plants have descended...

...of the organic kingdoms is composed of the modified descendants of a common ancestor, he believes " that animals have descended from at most only four...progenitors, and plants from an equal or lesser number." * But he is inclined to go further, and it does not seem to him incredible "that from some such low...

...hypothesis, which is, not that some races have thus originated, but that all have. Mr. Darwin believes " that animals have descended from at most only four...progenitors, and plants from an equal or lesser number." * Analogy, indeed, would lead him " one step farther," namely, to the belief that " all animals and...