Correspondence both handwritten and typed, text drafts, and other materials pertaining to the book which was being written by F.J. Roethlisberger and W.J. Dixon and also their monograph titled Management and the Worker which was based on data...
On the Revolutions of the Heavenly Spheres presents Copernicus's evidence and arguments for heliocentric theory, principally that the Earth revolves around the sun, contrasting with the Ptolemaic, or geocentric model, which maintained the Earth was...
