A survey of the Arabian medical writings of the Eastern and Western Caliphates. The first volume includes a survey early Arabic medical manuscripts then known, and a survey of the Arab medical writers of the Eastern and Western Caliphates. The second volume includes, as Appendix 1 a list of translators into Latin of Arabic works, and Appendix II, "An investigation of the date and authorship of the Latin versions of the works of Galen." This long appendix, which occupies most of the volume,  was an attempt to recontruct the Galenic Library as it was known in the Middle Ages.