Galen's impact on Islamic civilization, mainly on medicine but also on physics and philosophy, was enormous. His most important books were mediated through "summaries" which not only shortened, but in some cases also revised Galenic teachings. Several versions of these summaries exist, and their appreciation is critical for a proper understanding of the development of medieval science. This book presents the first editions, translations, and studies of the remaining summaries to On Critical Days. In Galenic theory, fevers develop towards a crisis which will determine the fate of a...

All can agree that the achievement of Moses Maimonides (d. 1204) set the standard for subsequent works of “Jewish philosophy”. But just what were the contours of philosophical-scientific inquiry that Maimonides replaced? A fairly large array of diverse texts have been studied, but no comprehensive picture has yet emerged. The newly discovered Hebrew dialogue published here has points of contact of various depth with most of the major works of pre-Maimonidean thought. It shares as well influences from without, especially from the Islamic kalam. The dialogue thus presents, in an engaging...