The list of the texts of the medical Faculties was, however, somewhat more considerable. The course in Montpellier, where medicine became still more important than law, followed in the main that of Salerno. The first place was given to Hippocrates and Galen. It is somewhat surprising that as late as 1250 the teachings of these old-time practitioners (whose work was done respectively in the fourth century B.C. and the second century A.D.) should still have remained the chief authorities in medical science. Compayré refers to them as the Aristotles of Medicine. In the program of the Faculty of Paris of 1270, however, the names of Hippocrates and Galen do not appear. With the two Greeks were associated the original works of Constantine and his translations from Rhazes Hali-Abbas, Ysaac, Avicenna, Johannicus, and other Arabic and Persian writers, and finally the treatise of John of St. Amand, and of Nicholas of Salerno. The _Antidotarium_, or _Book of Antidotes_, known also as the _Book of Medicaments_, was for some centuries a work of standard reference and of popular sale. The influence of the Arabs in the instructional literature of medicine seems to have been almost as controlling as that of the Greeks in philosophy and of the Romans in law. Rabelais, who studied medicine in Montpellier between 1520 and 1530, is said to have been the first among the students who was able to read his Greek authors in the original instead of in Latin translations.[268] Rabelais found time while in college not only for Greek and medicine, but for literature. The first part of the _Pantagruel_ was written before he had secured his final diploma. By the middle of the thirteenth century, the number of the books required for use in the university courses had increased to such an extent that four catalogues were issued, one for each of the four Faculties--Law, Medicine, Theology, and Arts. The lectures and the instruction were given entirely in Latin, which was the only language that could have been understood by all of the various nationalities represented, or even by the representatives of the different Italian dialects.