ire, making use of stones for tools and
weapons, wearing trophies, and securing cooperative action by means of
rhythmic dances, are here shown to be the simple forms of processes
which still minister to our daily needs.

_Book II._ #THE EARLY CAVE-MEN.# THE AGE OF COMBAT.

_Illustrated with a map, 16 full-page and 71 text drawings in
half-tone by Howard V. Brown. Cloth, square 12mo, 183 Pages. For
the primary grades._

In this volume the child is helped to realize that it is necessary not
only to know how to use fire, but to know how to make it. Protection
from the cold winters, which characterize the age described, is sought
first in caves; but fire is a necessity in defending the caves. The
serious condition to which the cave-men are reduced by the loss of
fire during a flood is shown to be the motive which prompts them to
hold a council; to send men to the fire country; to make improvements
in clothing, in devices for carrying, and in tools and weapons; and,
finally, to the discovery of how to make fire.

_Book III._ #THE LATER CAVE-MEN.# THE AGE OF THE CHASE.

_Illustrated with 27 full-page and 87 text drawings in half-tone by
Howard V. Brown. Cloth, square 12mo, 197 Pages. For the primary
grades._

Here is portrayed the influence of man's presence upon wild animals.
Man's fear, which with the conquest of fire gave way to courage, has
resulted in his mastery of many mechanical appliances and in the
development of social cooperation, which so increases his power as to
make him an object of fear to the wild animals. Since the wild animals
now try to escape from man's presence, there is a greater demand made
upon man's ingenuity than ever before in supplying his daily food. The
way in which man's cunning finds expression in traps, pitfalls, and in
throwing devices, and finally in a remarkable manifestation of art, is
made evident in these pages.

_Book IV._ #THE EARLY SEA PEOPLE.# FIRST STEPS IN THE CONQUEST OF THE
WATERS.

_Illustrated with 21 full-page and 117 text drawings in half-tone
by Howard V. Brown and Kyohei Inukai. Cloth, square 12mo, 224
pages. For the intermediate grades._

The life of fishing people upon the seashore presents a pleasing
contrast to the life of the hunters on the wooded hills depicted in
the previous volumes. The resources of the natural environment; the
early steps in the evolution of the various modes of catching fish, of
man