[i]

THE
WONDERS OF LIFE

A POPULAR STUDY
OF BIOLOGICAL PHILOSOPHY

BY

ERNST HAECKEL

(Ph.D., M.D., LL.D., Sc.D., and Professor at theUniversity of Jena)

AUTHOR OF
"THE RIDDLE OP THE UNIVERSE"
"THE HISTORY OF CREATION"
"THE EVOLUTION OF MAN"ETC.

TRANSLATED BY
JOSEPH McCABE

SUPPLEMENTARY VOLUME TO
"THE RIDDLE OF THE UNIVERSE"

HARPER & BROTHERS PUBLISHERS

NEW YORK AND LONDON
1905

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CONTENTS

Part I.—METHODOLOGICAL SECTION:
KNOWLEDGE OF LIFE

Part II.—MORPHOLOGICAL SECTION:
NATURE OF LIFE