The Rough Stone Age. Remains found in the gravels — The cave-men.
The Polished Stone Age. Lake-villages — Megalithic monuments.
The Bronze Age. Bronze — Bronze objects.
The Iron Age. Iron — Iron weapons — Epochs of the Iron Age.
Conclusions: How the four ages are to be conceived; uncertainties; solved questions.
History and the Documents. History — Legends — History in general — Great divisions of history — Ancient history — Modern history — The Middle Ages.
Sources for the History of Ancient Civilizations. Books — Monuments — Inscriptions — Languages — Lacunæ.
Races and Peoples. Anthropology — The races — Civilized peoples — Aryans and Semites.