Introductory material
Reading edition
Picture-Heading—Man as he lived in caves after the Glacial Period, among animals of species many of them now extinct—the cave bear (Ursus spelæus), cave lion, cave hyæna (Hyæna spelæa), elk, musk-sheep (Ovibos moschatus), mammoth (Elephas primigenius), and the sabre-toothed tiger (Machairodus), fighting with the man.