"Whatever we think of this move, the tendency to praise Darwin while damning Spencer often overlooks the fact that Darwin, too, believed in the biological significance of use-inheritance, and it figured strongly in his own views of cultural evolution."
"Is it not a significant fact that the alleged instances of use-inheritance so often prove to be self-conflicting in their details?"
"[45] For the importance of panmixia as invalidating Darwin's strongest evidence for use-inheritance -- namely, that drawn from the effects of disuse in highly-fed domestic animals where there is supposed to be no economy of growth -- see Professor Romanes on Panmixia, _Nature_, April 3,"