A Reattribution of the Tychonic Annotations in Copies of Copernicus's “De Revolutionibus”

Gingerich Owen , “The astronomy and cosmology of Copernicus”, pp. 67–85 in Contopoulos G. (ed.), Highlights in astronomy of the International Astronomical Union (1974); also, “Copernicus and Tycho”, Scientific American, ccxxix (1973), 86–101.

First reported at the History of Science Society meeting at Norwalk, Connecticut, October 1974.

Reinhold's annotated De revolutionibus is in the Crawford Collection, Royal Observatory, Edinburgh.

This Apianus is in the Regenstein Library, University of Chicago.

Craig's John 1566 De revolutionibus is in the University Library, Edinburgh.

An appended note from Monau Jacob , 23 October 1600, confirms the identification of the hand.