...with modification embraces all the members of the same class. I believe that animals have desconded from at most only four or five progenitors, and plants from an equal or less number. " Analogy would lead me one step further, namely to the belief that all animals and plants...

...modification to members of the same class. Then he launches out still more boldly and says : " I believe that animals have descended from at most only four or five progenitors, and plants from an equal or less number." (Page 419.) He seems inclined to stop again at this point, but a little thought soon...

...Notices of Books. 517 from the facts of animal and vegetable life warrants the conclusion, that Ml living animals "have descended from, at most, only four or...progenitors, and plants from an equal or lesser number. Analogy would lead me one step further, namely, to the belief that all animals and plants have descended...

...operation of natural causes. In his work on the " Origin of Species" he snys " I believe that animals are descended from at most only four or five progenitors, and plants from an equal or lesser number." On the same page he goes much further : " Analogy would lead me one step farther, namely, to the belief...

...up all the parts afresh." Darwin himself recognises this difficulty. Hence he says, in summing up, "I believe that all animals have descended from at most only four or five progenitors." But at this stage of his argument, the demands of his theory are imperative, and he adds — " Analogy...

...ensures the propagation of individuals in whom this divergence is maintained : this * " I believe that animals have descended from at most only four or five...progenitors, and plants from an equal or lesser number." — Origin of Species, p. 484. Mr Darwin goes on to say: " Analogy would lead one step further, namely,...

...rejection of spontaneous generation, — the statement of a belief that all animals have descended from four or five progenitors, and plants from an equal or lesser number, or, perhaps, if constrained to it by analogy, " from some one primordial form into which life was first...

...conquer, see How false, how brief hie victory 1 229 DARWIN ON THE ORIGIN OF SPECIES. [Continued.] " I CAN entertain no doubt, after the most deliberate...four or five progenitors, and plants from an equal or lessor number." Seeing that analogy as strongly suggests a further step in the same direction, while...

...theory of descent, with modification, embraces all the members of the same class. He believes that animals have descended from at most only four or five...progenitors, and plants from an equal or lesser number. Analogy would lead him one step further ; namely, to the belief that, in the beginning, there arose...

...the theory of descent with modification embraces all the members of the same class. I believe that animals have descended from at most only four or five...progenitors, and plants from an equal or lesser number. 'Analogy would lead me one step further, namely, to the belief that all animals and plants have descended...