Note 29 — BOOK II THE MAKING OF MEN

Three phases of human history before the knowledge and use of metals are often distinguished. First there is the so-called Eolithic Age (dawn of stone implements), then the Palæolithic Age (old stone implements), and finally an age in which the implements are skilfully made and frequently well finished and polished (Neolithic Age). The Palæolithic period is further divided into an earlier (sub-human) and a later (fully human) period. We shall comment on these divisions later.