Necessity of a general acquaintance with the outlines of Geology—A time in which no life was possible on the globe—Length of this period—History of life commences at the close of this period—On the formation of rocks—The record imperfect—The three great periods in animal life on the globe—Paleozoic Age—Animal and vegetable life of this period—Ideal scenes in this period—The Mesozoic Age—Animal and vegetable life of this period—Advance noted—Abundance of reptilian life—First appearance of birds—Nature’s methods of work—the Cenozoic Age Geological outline—Sketch of the Eocene Age—Of the Miocene Age—What is sufficient proof of the presence of man—Discussion on the Thenay flints—The Pliocene Age—Animal and vegetable life of this age—Was man present during this age?—Discussion of this subject—Summing up of the evidence—Conclusion. Chapter III: MEN OF THE RIVER DRIFT. Beginning of the Glacial Age—Interglacial Age—Man living in Europe during this age—Map of Europe—Proof of former elevation of land—The animals living in Europe during this age—Conclusions drawn from these different animals—The vegetation of this period—Different climatic conditions of Europe during the Glacial Age—Proofs of the Glacial Age—Extent of Glacial Ice—Evidence of warm Interglacial Age—The primitive state of man—Early English civilization—Views of Horace—Primitive man destitute of metals—Order in which different materials were used by man for weapons—Evidence from the River Somme—History of Boucher De Perthes’s investigations. Discussion of the subject—Antiquity of these remains—Improvement during the Paleolithic Age—Description of the flint implements—Other countries where these implements are found—What race of men were these tribes—The Canstadt race—Mr. Dawkins’s views—When did they first appear in Europe? The authorities on this question—Conclusion. Chapter IV: CAVE-MEN. Other sources of information—History of cave explorations—The formation of caves—Exploration in Kent’s Cavern—Evidence of two different races—The higher culture of the later race—Evidence of prolonged time—Exploration of Robin Hood Cave—Explorations in Valley of the River Meuse—M. Dupont’s conclusions—Explorations in the Valley of the Dordogne—The station at Schussenreid—Cave-men not found south of the Alps—Habitations of the Cave-men—Cave-men were hunters—Methods of cooking—Destitute of the potter’s art—Their weapons—Clothing—Their skill in drawing—Evidence of a government—Of a religious belief—Race of the Cave-men—Distinct from the Men of the Drift—Probable connection with the Eskimos. Chapter V: ANTIQUITY OF THE PALEOLITHIC AGE.