Abstract
Professor Westman’s reply need be considered only briefly. When I received for review The Copernican Question, Prognostication, Skepticism, and Celestial Order, with its superlative commendations, I believed I had in my hands a book of surpassing erudition, the culmination of more than forty years of study by one of the world’s greatest experts on Copernicus and the astronomy and astrology of the Renaissance and early modern period. Imagine my surprise as I read this vast tome and discovered that it did not appear worthy of Professor Westman’s eminence. Still, I reviewed the book as well as I could and, leaving aside matters of opinion, concentrated upon two issues, competence and trust. Is Professor Westman ..