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Updated: May 17, 2025
And, especially, how do they set to work to build up their organ? Here the whole riddle of the theory of epigenesis, which Weismann wished to do away with as a mystery, is repeated a thousand times and made more difficult.
"Because, sir, I never consider the fact of a murder established, until the body of the victim has been found." "You may stand down." Dr. Solomon Weismann was next called to the stand, and corroborated the testimony of the last witness. Several other witnesses were then called in succession, whose testimony being only corroborative, was not very important.
But assured as the doctrine of descent appears, and certain as it is that it has not only maintained its hold since Darwin’s day, but has strengthened it and has gained adherents, this foundation of Darwinism is nevertheless not the unanimous and inevitable conclusion of all scientific men in the sense and to the extent that the utterances of Weismann and others would lead us to suppose.
To explain this Weismann went back to the unicellular protozoa. These animals are undoubtedly influenced by environment and vary under its stimuli. Here the variations were stamped upon the germ-plasm, and the commingling of these variously stamped germ-plasms has resulted in all the variations of higher animals. Of late Weismann has modified and greatly improved this portion of his theory.
His tone, however, is so off-hand, that those who have little acquaintance with the literature of evolution would hardly guess that he is not much better informed on this subject than themselves. Returning to the inheritance of acquired characters, Professor Weismann says that this has never been proved either by means of direct observation or by experiment.
But their tails were quite up to the mark, as any fool could have told him beforehand. Weismann then gravely drew the inference that acquired habits cannot be transmitted. And yet Weismann was not a born imbecile. He was an exceptionally clever and studious man, not without roots of imagination and philosophy in him which Darwinism killed as weeds.
He will smile, perhaps, when I tell him that Weismann cut off the tails of endless mice, and, breeding them together, found that tails invariably decorated the race as before. I remember hearing Mr. Bernard Shaw comment on this experiment. He was defending the Lamarckianism of Samuel Butler, who declared that our heredity was a kind of race-memory, a lapsed intelligence. "Why," said Mr.
Then he proposed his theory of germinal selection, determinants growing and multiplying in competition, some perhaps disappearing altogether, though this does not satisfactorily account for entirely new characters. With Weismann, however, every species was a different adaptation, and natural selection was the deus ex machina; to quote his own words, Alles ist angepasst.
I didn't know but what it was Do, for mercy's sake don't be talking about the last judgment, and such awful things I declare to man, you put me all of a trimble," said Miss Nancy, by way of accounting for her palpitations, as she unbarred the door, and admitted her learned nephew. Dr. Solomon Weismann seemed dreadfully downhearted as he entered.
Kidd's style, apart from certain tricks or mannerisms, was, for philosophic purposes, admirable. But no mere merits of style would account for the popularity of a work which consisted, in form at all events, of recondite discussions of evolution as conceived by the Darwinians on the one hand and the disciples of Weismann on the other. The popularity of Mr.
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