Published in 1913: The object of the present work is to throw some light on the theory of Descent. Among many of the students of nature of the present day we perceive that greater and greater contradictions arise between the actual results of their technical work and that which they put forward as ‘postulates’ of the theory of Evolution.

part Section I|1 pages

General (PalÆontological) Bases OF The Theory Of Evolution.

part Section II|1 pages

The Explanatory Domain of the Hypothesis of Evolution.

chapter Chapter I|6 pages


part Section III|1 pages

Evolutionary Hypotheses.

chapter Chapter I|19 pages

The Principal Attempts at Explanation Hitherto.

chapter Chapter II|72 pages

Suggestions for Reliable Hypotheses of Evolution.