Constantine did much more than merely bring out his translations of Arabian works. He gave a zest to the study of the old masters, issued editions of certain, at least, of the works of Hippocrates ("Aphorisms") and Galen ("Microtechnics"), and, in general, called attention to the precious treasure of medical lore that must be used to advantage if men were to teach the rising generation out of the accumulated knowledge of the past. Pagel, in Puschmann's "Handbook," does not hesitate to say that "a farther merit of Constantine must be recognized, inasmuch as that not long after his career the second epoch of the school of Salerno begins, marked not only by a wealth of writers and writings on medicine, but, above all, because from this time on the study of Greek medicine received renewed encouragement through the Latin versions of the Arabian literature. We may think as we will of the worth of these works, but this much is sure, that in many ways they brought about a broadening and an improvement of Greek knowledge, especially from the pharmacopeia standpoint." Probably the best evidence that we have for Constantine's influence on his generation is to be found in what was accomplished by men who acknowledged with pride that he was their master, and who thought it a mark of distinction to be reckoned as his disciples. Among these especially noteworthy is Johannes Afflacius, or Saracenus (whose surname of the Saracen probably means that he, too, came from Africa, as his master did). He was the author of two treatises on "Fevers and Urines," and the so-called "Cures of Afflacius." Some of these cures he directly attributed to Constantine. Then there is a Bartholomew who wrote a "Practica," or "Manual of the Practice of Medicine," with the sub-title, "Introductions to and Experiments in the Medical Practice of Hippocrates, Constantine, and the Greek Physicians." Bartholomew represents himself as a disciple of Constantine. This "Practica" of Bartholomew was one of the most commonly used books of the twelfth and thirteenth centuries throughout Europe. There are manuscript commentaries and translations, and abstracts from it not only in the Latin tongues, but especially in the Teutonic languages. Pagel refers to manuscripts in High and Low Dutch, and even in Danish. The Middle High Dutch manuscripts of this "Practica" of Bartholomew come mainly from the thirteenth century, and have not only a special interest because of their value in the history of philology, but because they are the main sources of all the later books on drugs which appeared in very large numbers in German. They have a very great historico-literary interest, especially for pharmacology.