Chapter I: Introduction: BY

HENRY FAIRFIELD OSBORN

ILLUSTRATED BY THE AUTHOR

BONI AND LIVERIGHT
PUBLISHERS NEW YORK

COPYRIGHT, 1920, BY
BONI & LIVERIGHT, INC.

_Printed in the United States of America_

To
My Wife and Collaborator
SYDNEY HOLMES LANGFORD

LIST OF ILLUSTRATIONS

THE JOURNEY THROUGH CENTRAL FRANCE _Frontispiece_

PAGE

THE ARRIVAL OF THE MAMMOTH 3

“UGH! WHAT ARE YOU DOING THERE?” 26

“WHY DO YOU BEAT THOSE ROCKS TOGETHER?” THE MAMMOTH INQUIRED 37

GRUN WAUGH SPRANG SNARLING TO HIS FEET 53

THE CAVE LION TOOK ONE LOOK—AND WAITED TO SEE NO MORE 64

PIC AT SHA PELL 74

THE MEETING WITH THE SEINE FLINT WORKERS 104

“STAND BACK! FOR YOUR LIVES, STAND BACK!” 129

WITH A HOARSE CRY PIC SPRANG TO HIS FEET 145

HAIRI AND THE CAVE LEOPARD 211

THE TIME CAME WHEN WULLI FAILED TO RESPOND 224

PIC DISCOVERS THE USE OF THE BONE TOOL 240

PLUCKED FROM ITS MOTHER’S ARMS AND WHIRLED ALOFT 268