Abstract
Pierre Bayle was professor of philosophy at the Illustrious School in Rotterdam from 1681 until 1693. Little is known about his courses there. However, the discovery of two disputations, Theses philosophicae, which were defended by students under his supervision, makes clear that he taught elementary Cartesian physics in a rather orthodox way. It is obvious that he did not change the course which he had given in Sedan in 1677, and which was published under the title Cours de philosophiein volume four of his Œuvres diverses