_Oribasius_ was born at Pergamos, the birthplace of Galen, about A.D. 326. He studied under _Zenon_, who lectured and practised at Alexandria, and was expelled by the bishop, but afterwards reinstated by command of the Emperor Julian (A.D. 361). When Julian was kept in confinement in Asia Minor, Oribasius became acquainted with him, and they were soon close friends. When Julian was raised to the rank of Cæsar, Oribasius accompanied him into Gaul. During this journey Oribasius, at the request of his patron, made an epitome of the writings of Galen, and then extended the work by including a collection of the writings of all preceding medical authors. When this work was finally completed it consisted of seventy books under the title "Collecta Medicinalia." He wrote also for his friend and biographer Eunapius two books on diseases and their treatment, and treatises on anatomy and on the works of Galen. He earned for himself the title of the Ape of Galen. In the "Life of Oribasius," by Eunapius, we find that Julian created Oribasius Quæstor of Constantinople, but after the death of Julian, Oribasius was exiled, and practised among the "barbarians," attaining great fame. In his exile he married a rich woman of good family, and to one of his sons, Eustathius by name, he addressed an abridgment of his first great book, the smaller work being called the "Synopsis." He ultimately returned from exile, and again reached a very honourable position, to which he was well entitled in virtue of the great fortitude with which he had borne adversity. An edition of Oribasius was published at Paris between 1851 and 1876, in six volumes, by Daremberg and Bussemaker, under the patronage of the French Government. The authors of this edition took infinite pains to show the sources from which the writings of Oribasius had been derived, chief of which were the original writings of Galen, Hippocrates, Soranus, Rufus, and Antyllus. Oribasius was almost entirely a compiler, but also did some original work. To him is due the credit of describing the drum of the ear and the salivary glands. He described also the strange disease called lycanthropy, a form of insanity in which the patient thinks himself a wolf, and leaves his home at night to wander amongst the tombs. Oribasius was held to be the wisest man of his time. There was something very charming in his manner and conversation, and the barbarians considered him as little less than a god. _Magnus_, a native of Mesopotamia, was a pupil of Zenon and lectured at Alexandria. He was famous for his eloquence and dialectical skill, and wrote a book on "Urine" which is referred to by Theophilus. _Jacobus Psychristus_ was a famous physician who practised at Constantinople, A.D. 457-474. He was called "the Saviour" because of the great success of his treatment. _Adamantius_ of Alexandria both taught and practised medicine. He was a Jewish physician who was expelled from Alexandria in A.D. 415, and settled in Constantinople.