Interest in the Antiquity of man—Connected with the Glacial Age—The subject difficult—Proofs of a Glacial Age—State of Greenland to-day—The Terminal Moraine—Appearance of the North Atlantic—Interglacial Age—Causes of the Glacial Age—Croll’s Theory—Geographical causes—The two theories not antagonistic—The date of the Glacial Age—Probable length of the Paleolithic Age—Time Since the close of the Glacial Age—Summary of results. Chapter VI: THE NEOLITHIC AGE IN EUROPE. Close of the first cycle—Neolithic culture connected with the present—No links between the two ages—Long lapse of time between the two ages—Swiss lake villages—This form of villages widely scattered—Irish cranogs—Fortified villages—Implements and weapons of Neolithic times—Possessed of pottery—Neolithic agriculture—Possessed of domestic animals—Danish shell-heaps—Importance of flint—The art of navigation—Neolithic clothing—Their mode of burial—The question of race—Possible remnants— Connection with the Turanian race—Arrival of the Celts. Chapter VII: THE BRONZE AGE IN EUROPE. Races of Men, like Individuals—Gradual change of Neolithic Age to that of Bronze—The Aryan family—First Aryans Neolithic—Origin of Bronze—How Great discoveries are made—Gold the first metal—Copper abundant—No Copper Age—The discovery of Tin—Explanation of an Alloy—Bronze, wherever found, the same composition—What is meant by the Bronze Age—Knowledge in other directions—Gradual Growth of Culture—Three Centers of Bronze production—Habitations during the Bronze Age—The Bronze Ax—Implements of Bronze—Personal ornaments—Ornaments not always made of Bronze—Advance in Arts of living—Advance in Agriculture—Warlike Weapons—How they worked Bronze—Advance in Government—Trade in the Bronze Age—Religion of the Bronze Age—Symbolical figures—Temples of the Bronze Age—Stonehenge. Chapter VIII: THE IRON AGE IN EUROPE. Bronze not the best metal—Difficulties attending the discovery of Iron—Probable steps in this discovery—Where this discovery was first made—Known in Ancient Egypt—How this knowledge would spread—Iron would not drive out Bronze—The primitive Iron-worker—The advance in government—Pottery and ornaments of the Iron Age—Weapons of early Iron Age—The battle-field of Tilfenau—Trade of early Iron Age—Invention of Money—Invention of Alphabetic Writing—Invasion of the Germanic Tribes—The cause of the Dark Ages—Connection of these three ages—Necessity of believing in an Extended Past—Attempts to determine the same—Tiniere Delta—Lake Bienne—British Fen-lands—Maximum and Minimum Data—Mr. Geikie’s conclusions—The Isolation of the paleolithic Age. Chapter IX: EARLY MAN IN AMERICA.