. . .ossess powers of body and mind, and forms and products of culture, which must have been acquired gradually through a long course of development from no better origins than are traceable in apes and wolves. As the use of good stone weapons by living savages and the occurrence of stone weapons in deposits of various age in the Pleistocene—less and less perfectly made the further we go back—justify us in assuming that there must have been eoliths of even cruder workmanship at remoter dates, so the possession by savages of extensive languages, intricate customs, luxuriant myths, considerable reasoning powers and even humane sentiments, compel us to imagine such possessions as belonging to our prehistoric ancestors, in simpler and simpler forms, as we go back age by age toward the beginning. A tentative reconstruction of the lost series of events may sometimes be supported by what has been observed of the individual development of our children.

(a) For . . . Read More