Chapter II. EARLY GEOLOGICAL PERIODS.

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--metho