He translated most of the works of Hippocrates and Galen, Aristotle and many others.

His famous "Introduction" or "Isagoge," a very popular book in the Middle Ages, is a translation of the "Microtegni" of Galen, a small hand-book, of which a translation is appended to Cholmeley's "John of Gaddesden."(11) The first printed edition of it appeared in 1475 (see Chapter IV) at Padua.
(10) Leclerc: Histoire de la medecine arabe, Tome I, p.

139.
(11) Oxford, Clarendon Press, 1912, pp.

136-166.

The Mesues also did great work, and translations of their compilations, particularly those of the younger Mesue, were widely distributed in manuscript and were early printed (Venice, 1471) and frequently reprinted, even as late as the seventeenth century.
Leclerc gives the names of more than one hundred known translators who not only dealt with the physicians but with the Greek philosophers, mathematicians and astronomers.