Scope and Contents

This letter is dated 15 August 1686 and was written to Dr. Johann Philipp von Wurtzelbau (1651-1725) "my dear and respectable friend." Its content is concerned with arguments relating to lunar eclipses, about the planets Mars and Uranus, some astronomical theories, and in what should be made public. Hevelius expresses concern that his observations are considered forbidden by the council in Rome.

Abstract Contains McPike's genealogy research in the Halley, Pyke and MacPike families (all English, among others) and his research for the publications: Hevelius, Flamsteed and Halley: Three Contemporary Astronomers and Their Mutual Relations (London: Taylor and Francis, 1937), and Correspondence and Papers of Edmond Halley (London: Taylor and Francis, 1937). McPike also collected and wrote about Sir Isaac Newton. The papers also includes McPike's research materials related to his publications on...