Erasmus Darwin

Definition and stakes

Portrait of Herbert Spencer Herbert Spencer Essays: Scientific, Political, & Speculative…

Darwin, and traced out by him with so much care and skill, can we conclude that, taken alone, it accounts for organic evolution? Has the natural selection of favourable variations been the sole factor? On critically examining the evidence, we shall find reason to think that it by no means explains all that has to be explained. Omitting for the present any consideration of a factor which may be distinguished as primordial, it may be contended that the above-named factor alleged by Dr. Erasmus Darwin and by Lamarck, must be recognized as a co-operator.
Source: Gutenberg

Samuel Butler Evolution, Old & New

Erasmus Darwin maintain that species and genera have arisen because animals can fashion themselves into accord with their conditions, so that, as Lamarck is so continually insisting, the action of the conditions is indirect only—changed use and disuse being the direct causes; while, according to Mr. Darwin, it is natural selection itself (which, as we have seen, is but another way of saying conditions of existence) that is the most important means of modification.
Source: Gutenberg

Samuel Butler Luck, or Cunning, as the Main Means of Organic Modification

Darwin had been dealing fairly by us, when he saw that we had failed to catch the difference between the Erasmus-Darwinian theory of descent through natural selection from among variations that are mainly functional, and his own alternative theory of descent through natural selection from among variations that are mainly accidental, and, above all, when he saw we were crediting him with other men’s work, he would have hastened to set us right.
Source: Gutenberg

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