CONTENTS.

PAGE

PREFACE ................................................................... i

INTRODUCTION .................................................... 1

FIRST EPOCH.

Men united into Hordes ................................................. 21

SECOND EPOCH.

Pastoral State of Mankind. --- Transition
from that to the Agricultural State ........................ 29

THIRD EPOCH.

Progress of Mankind from the Agricul-
tural State to the Invention of Alpha-
betical Writing ..................................................... 40

FOURTH