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