The philosophy of religion /

Includes bibliographical references and index.

Principles of political economy with some of their applications to social philosophy /

Mode of access: Internet.

The Journal of philosophy.

Covers topics in philosophy, psychology, and scientific methods. Vols. 31- include "A Bibliography of philosophy," 1933-

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

Mode of access: Internet.

Outlines of cosmic philosophy, based on the doctrine of evolution, with criticisms on the positive philosophy,

Mode of access: Internet.

The elements of natural or experimental philosophy /

Includes indexes.

Treatise on natural philosophy,

"The most important part of the labour of editing part II. has been borne by Mr. G.H. Darwin ... [who] has made valuable contributions to the work."