Lectures on polarized light : delivered before the Pharmaceutical Society of Great Britain, and in the Medical School of the London Hospital.

Publisher's catalog comprises last 32 pages.

On the mental illumination and moral improvement of mankind; or, An inquiry into the means by which a general diffusion of knowledge and moral principle may be promoted. Illustrated with engravings.

Mode of access: Internet.

Illumination: spiritual healing.

Mode of access: Internet.

L'expérience mystique de l'illumination intérieure chez Roger Bacon,

Mode of access: Internet.