(67) Schmidt, 1912.1, p. 266.
(68) Penck, 1909.1, vol. III, p. 1168, Fig. 136.
(69) Neumayr, 1890.1, vol. II, p. 621.
(70) Martins, 1847.1, pp. 941, 942.
(71) Osborn, 1910.1, pp. 386-427.
CHAPTER I
ANCESTRY OF THE ANTHROPOID APES—PLIOCENE CLIMATE, FORESTS, AND LIFE OF WESTERN EUROPE—TRANSITION TO THE PLEISTOCENE, OR AGE OF MAN—THE FIRST GLACIATION, ITS EFFECTS ON CLIMATE, FORESTS, AND ANIMAL LIFE—THE PREHUMAN TRINIL RACE OF JAVA—THE EOLITHS OR PRIMITIVE FLINTS—THE SECOND GLACIATION—THE HEIDELBERG, EARLIEST KNOWN HUMAN RACE—THE THIRD GLACIATION
The partly known ancestors of the anthropoid apes and the unknown ancestors of man probably originated among the forests and flood-plains of southern Asia and early began to migrate westward into northern Africa and western Europe.