Abstract

In 1913 Pierre Duhem published a lecture in which he summarized his then startling discovery that Galileo owed a great deal to medieval scholastic natural philosophers. The result of this discovery was not only to establish the history of medieval science as an autonomous scholarly discipline, but also to initiate intensive research into the background and sources of Galileo's work. No scholar has contributed more in recent years to this research than William Wallace. His Prelude to Galileo and his Galileo and His Sources have gone a long way toward solving a number of problems concerning Galileo's connection to the medieval tradition. In two important new books, Wallace takes this research another step forward by documenting Galileo's participation in the commentary tradition on Aristotle's Posterior Analytics.