gives very minute directions for the treatment, according to the nature of the exciting cause. When connected with constriction, he approves of bleeding, if, as generally happens, it be attended with fulness. Oribasius and Aëtius treat of ephemeral fevers in much the same terms as our author. Palladius says that ephemerals are affections of the _spirits_, arising from some external exciting cause, such as fatigue, intoxication, anxiety, watchfulness, or from a tumour of the groin. Celsus gives a similar enumeration of the causes, but in briefer terms: “Febris ex inguine, vel ex lassitudine, vel ex æstu, aliâve simili re est.” Almost all the authorities, from Hippocrates downwards, mention enlargement of the glands, especially those of the groin, among the causes of fever. Agathias, the historian, remarks, that pestilential fever is attended with enlargement of the inguinal glands, but does not terminate favorably in one day, like the ephemerals. (Hist. v.) Stephanus, the commentator, accounts for the enlargement of the glands in fever, as being a collection of the impurities of the system in its weakest points. (Ed. Dietz, p. 244 and 256.) Nonnius enumerates nearly the same causes of these fevers as our author, whom he appears to have followed closely. He remarks, that ephemerals are sometimes protracted to the third or fourth day, from which it appears that the term is not to be taken in too strict a sense. Leo, also, expresses himself in like terms. Synesius treats of ephemeral fevers with great accuracy, so that we have reason to regret that the text of this author should be so corrupt. Like preceding authors, he enumerates, among the exciting causes, abscess of the glands of the groin, neck, and armpits, the heat of which, he says, being determined to the heart, kindles a fever. In this case he recommends discutient and emollient applications, such as mallows, linseed, and the like. The account given by Constantinus Africanus is exactly similar to his. Actuarius mentions the same causes, and briefly recommends the same treatment as our author. Alexander Aphrodisiensis says expressly, that the ephemeral fever may pass into the putrid and the putrid into the hectic. (De Febribus, 28.)