Harmonics of evolution, the philosophy of individual life, based upon natural science,

Mode of access: Internet.

Studies of nature.

Mode of access: Internet.

Caloric: its mechanical, chemical and vital agencies in the phenomena of nature.

Appendix by B. H. R.: v. 2, p. 421-441.

Wonders of nature, as seen and described by famous writers.

Mode of access: Internet.

The night-side of nature; or, Ghosts and ghost-seers.

1st edition published in 1848.

The analogy of religion : natural and revealed, to the constitution and course of nature /

Mode of access: Internet.

The philosophy of religion in England and America

Mode of access: Internet.

The philosophy of religion; lectures written for the Elliott lectureship at the Western theological seminary, Pittsburgh, Penna., U. S. A., 1916,

Mode of access: Internet.

Comte's philosophy of the sciences: being an exposition of the principles of the Cours de philosophie positive /

Preface dated 1853.

A short method with modern doubt. A centenary contribution. In three parts: 1. Jesus His own proof. II. The laws of nature. III. Correspondence with Spinoza.

Mode of access: Internet.

The Growing world; or, Progress of civilization, and the wonders of nature, science, literature and art, interspersed with a useful and entertaining collection of miscellany

Mode of access: Internet.

The philosophy of English poetry.

Mode of access: Internet.

The philosophy of mathematics.

Bibliography: p. 261-282.

A philosophy of mathematics.

"Based upon courses in philosophy of mathematics given at the University of North Carolina."

Of the law of nature and nations. Eight books.

Mode of access: Internet.