Fables of Infidelity and Facts of Faith Being an Examination of the Evidences of Infidelity

Life: Its True Genesis

Lectures and Essays

Essays on the work entitled "Supernatural Religion"

The Necessity of Atheism

Science and Morals and Other Essays

The Relations of Science and Religion The Morse Lecture, 1880

The Riddle of the Universe at the close of the nineteenth century

Gedanken über Religion Die religiöse Entwicklung eines Naturforschers vom Atheismus zum Christentum.

Last Words on Evolution: A Popular Retrospect and Summary

The Creator, and what we may know of the method of creation

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