The story of evolution; facts and theories on the development of life,

Mode of access: Internet.

Optical theories based on lectures delivered before the Calcutta University.

Bibliographical footnotes.

An investigation of the laws of thought, on which are founded mathematical theories of logic and probabilities.

Mode of access: Internet.

The theories of inspiration of the Rev. Daniel Wilson, Rev. Dr. Pye Smith, and the Rev. Dr. Dick, proved to be erroneous : with remarks on the Christian observer, & Eclectic review,

Mode of access: Internet.

Manual on design and manufacture of torsion bar springs.

Mode of access: Internet.