Note on a Review of
The Wonders of Life and
The Riddle of the Universe by E. Haeckel

Note on a Feuilleton in the newspaper “Frankfurter Zeitung” of
November 15, 1904, which comments on two books by
E. Haeckel— Lebenswunder ( Gemeinverständliche Studien über biologische Philosophie ) [ The Wonders of Life ( Elementary Studies in Biological Philosophy )], Stuttgart (Alfred Kröner) and
Welträtsel ( The Riddle of the Universe )—was written on a separate sheet,
which also contained a list of a number of foreign books on the agrarian question. The entry was made
at the end of 1904. Lenin gave an evaluation of
The Riddle of the Universe by E. Haeckel in
Materialism and Empirio-Criticism .

Frankfurter Zeitung , 1904, No. 348 (December 15)

First morning edition

A Feuilleton on New Biological Books

Ernst Haeckel: Lebenswunder (Gemeinverständliche Studien über
biologische Philosophie). Stuttgart. (Alfred
Kröner.)

(To Haeckel, “the spirit is a physiological function of the cerebral cortex.” P. 378 of
his book. To be sure, the reviewer is against this opinion.)

Welträtseln by the same author ((published earlier)) (in which it is
demonstrated that, properly speaking, there are no world riddles).