Haeckel

The cover image was created by the transcriber and is placed in the public domain.
ERNST HAECKEL. From the Painting by Franz von Lenbach, 1899. (Reproduced in “Jugend.”)
HAECKEL:
HIS LIFE AND WORK
WILHELM BÖLSCHE
WITH INTRODUCTION AND SUPPLEMENTARY CHAPTER BY THE TRANSLATOR,
JOSEPH McCABE
WITH THIRTEEN ILLUSTRATIONS
PHILADELPHIA
GEORGE W. JACOBS & CO .
PUBLISHERS
( All rights reserved. )