Initiative in Evolution

by Walter Kidd

Darwin.

Much of the Origin of Species and all of the Descent of Man was founded on this method; thus in the former the conceptions of struggle took their main rise from the work of Malthus on Human Popula­tion, and of variation from domesticated animals and plants, and this is true also of Wallace. A mere glance at the divisions of The Descent of Man shows that it could never have been attempted in any other than the backward way.