This volume is presented as a companion study to my translation of Galileo's MS 27, Galileo's Logical Treatises, which contains Galileo's appropriated questions on Aristotle's Posterior Analytics - a work only recently transcribed from the Latin autograph. Its purpose is to acquaint an English-reading audience with the teaching in those treatises. This is basically a sixteenth-century logic of discovery and of proof about which little is known in the present day, yet one that arguably guided the most significant research program of the seventeenth century. Despite its historical and...

Can it be true that Galilean studies will be without end, without conclusion, that each interpreter will find his own Galileo? William A. Wallace seems to have a historical grasp which will have to be matched by any further workers: he sees directly into Galileo's primary epoch of intellectual formation, the sixteenth century. In this volume, Wallace provides the companion to his splendid annotated translation of Galileo 's Early Notebooks: The Physical Questions (University of Notre Dame Press, 1977), pointing to the 'realist' sources, mainly unearthed by the author himself during the past...