About the year 390 A. D., when Oribasius was already an old man, he published (in nine books) a “Synopsis” of the larger work, chiefly for the benefit of his son Eustathios, who was at that time studying medicine. Surgery is omitted from this work, as that branch of medicine was assumed to belong entirely to specialists. At a still later date (about 395 A. D.), Oribasius published a third work (in four books) entitled “Euporista,” which was intended chiefly for the use of laymen. The subject-matter of this treatise consists of diet, hygiene and general therapeutics. Neuburger speaks well of all three of the published works of Oribasius, and furnishes a fairly full analysis of the contents of each one. Bussemaker and Daremberg have published, in six volumes (Paris, 1856–1876), an excellent French version of the works of Oribasius. _Priscianus._--Theodorus Priscianus lived during the latter part of the fourth and the first part of the fifth century of the present era. Very little is known about his professional career beyond the facts that he was a pupil of Vindicianus, a distinguished physician who lived during the reign of the Emperor Valentinianus I. at Constantinople (364–375 A. D.), and that subsequently he was chosen the private physician of the Emperor Gratianus (375–383 A. D.). The treatise which he composed, and which bore the title of “Euporiston,” was originally written in Greek, but was afterward translated by its author into Latin. An excellent German version of the work by Meyer-Steineg was published in Jena in 1909. As the book was intended by Priscianus to serve chiefly as a guide to practitioners of the art, it contains practically nothing about anatomy and physiology. In his pathology he follows closely the teachings of the Methodists; his first question, in the presence of a case of illness, being: “Do the symptoms point to a condition of _strictum_ rather than to one of _laxum_, or _vice versa_?” “In his treatment,” says Meyer-Steineg, “Priscianus follows very closely the rule that every patient, no matter what may be the disease with which he is affected, should first undergo a certain amount of general treatment.” In his choice of remedies Priscianus invariably gives the preference to those agents which are of a simple character and easy to obtain. On the other hand, he does not hesitate to admit that he sometimes employs certain magical remedies, as is shown by the following quotation taken from Book IV., Chapter I., section 4:-- If a person wears, during the waning of the moon, a wreath of polygonum on his head, he will obtain relief from his headache.... If one drinks of the water from which an ox has just drank, he will be relieved of the pain in his head.... If a loadstone be held upon the head it will draw out the hidden pain, and the same effect may be obtained by rubbing over the forehead a swallow’s nest thoroughly mixed with vinegar.