Philosophumena; or, The refutation of all heresies, Volume I

by Antipope Hippolytus

Galileo. By W. W. Bryant, F.R.A.S.

Michael Faraday. By J. A. Crowther, D.Sc.

Alfred Russel Wallace. The Story of a Great Discoverer. By Lancelot T. Hogben, B.A., B.Sc.

Joseph Priestley. By D. H. Peacock, B.A., M.Sc., F.I.C.

Joseph Dalton Hooker, O.M., G.C.S.I., C.B., F.R.S., M.D., etc. By Professor F. O. Bower, Sc.D., F.R.S.

Herschel. By the Rev. Hector Macpherson, M.A., F.R.A.S., F.R.S.E.

Archimedes. By Sir Thomas L. Heath, K.C.B., F.R.S.

The Copernicus of Antiquity (Aristarchus of Samos). By Sir Thomas L. Heath, K.C.B., F.R.S.

John Dalton. By L. J. Neville-Polley, B.Sc.

Kepler. By W. W. Bryant.