Dawkins, Cave-hunting; Early Man in Britain.
Evans, Ancient Stone Implements of Great Britain.
Fergusson, Rude Stone Monuments.
Keller and Lee, Lake Dwellings of Switzerland.
Nilsson, Primitive Inhabitants of Scandinavia.
Wilson, Prehistoric Man.
Philology:—
Max Müller, Lectures on the Science of Language.
Sayce, Comparative Philology; Introduction to the Science of Language.