THE CONDITIONS OF EXISTENCE AS AFFECTING THE PERPETUATION OF LIVING
BEINGS.

A CRITICAL EXAMINATION OF THE POSITION OF MR. DARWIN'S WORK, "ON THE
ORIGIN OF SPECIES," IN RELATION TO THE COMPLETE THEORY OF THE CAUSES OF
THE PHENOMENA OF ORGANIC NATURE.


ESSAYS ON DARWIN'S "ORIGIN OF SPECIES":

THE DARWINIAN HYPOTHESIS.

TIME AND LIFE.

THE ORIGIN OF SPECIES.

CRITICISMS ON "THE ORIGIN OF SPECIES".


EVIDENCE AS TO MAN'S PLACE IN NATURE:

ON THE NATURAL HISTORY OF THE MAN-LIKE APES.

ON THE RELATIONS OF MAN TO THE LOWER ANIMALS.

ON SOME FOSSIL REMAINS OF MAN.


ON THE ADVISABLENESS OF IMPROVING NATURAL KNOWLEDGE.