In that branch of modern medical science which treats of the classification of diseases, and which is termed Nosology, a systematic arrangement is followed, and the prominent symptoms are taken as the basis of that classification. GREEK MEDICAL LITERATURE. The following is Dr. Greenhill’s probably complete list of the ancient treatises on Therapeutics now extant.[432] Hippocrates: Seven Books (see p. 178 of this work). Aretæus, Περὶ Θεραπείας Ὀξέων καὶ Χρονίων Παθῶν, _De Curatione Acutorum et Diuturnorum Morborum_, in four books. Galen, Τέχνη Ἰατρική, _Ars Medica_; Id. Θεραπευτικὴ Μέθοδος, _Methodus Medendi_; Id. Τὰ πρὸς Γλαύκωνα Θεραπευτικά, _Ad Glauconem de Medendi Methodo_; Id. Περὶ Φλεβοτομίας πρὸς Ἐρασίστρατον, _De Venæsectione adversus Erasistratum_; Id. Περὶ Φλεβοτομίας πρὸς Ἐρασιστρατείους τοὺς ἐν Ῥώμη, _De Venæsectione adversus Erasistrateos Romæ Degentes_; Id. Περὶ Φλεβοτομίας Θεραπευτικὸυ Βιβλίον, _De Curandi Ratione per Venæsectionem_; Id. Περὶ Βδελλῶν, Ἀντισπασέως, Σικύας, καὶ Ἐγχαράξεως, καὶ Καταχασμοῦ, _De Hirudinibus, Revulsione, Cucurbitula, Incisione, et Scarificatione_. Alexander Aphrodisiensis, Περὶ Πυρετῶν, _De Febribus_. Great part of the Σύναγωγαὶ Ἰατρικαί, _Collecta Medicinalia_, of Oribasius, and also of his Σύνοψις, _Synopsis ad Eustathium_, treat of this subject. Palladius, Περὶ Πυρετῶν Σύντομος Σύνοψις, _De Febribus Concisa Synopsis_. Ætius, Βιβλία Ἰατρικὰ Ἐκκαίδεκα, _Libri Medicinales Sedecim_. Alexander Trallianus, Βιβλία Ἰατρικὰ Δυοκαίδεκα, _Libri de Re Medica Duodecim_. Paulus Ægineta, Ἐπιτομῆς Ἰατρικῆς Βιβλία Ἕπτα, _Compendii Medici Libri Septem_, of which great part relates to this subject. Theophanes Nonnus, Ἐπιτομὴ τῆς Ἰατρικῆς Ἀπάσης Τέχνης, _Compendium Totius Artis Mediciæ_. Synesius, Περὶ Πυρετῶν, _De Febribus_. Joannes Actuarius, _Methodus Medendi_. Demetrius Pepagomenus, Περὶ Ποδάγρας, _De Podagra_. Celsus, _De Medicina_, in eight books. Cælius Aurelianus, _Celerum Passionum_, Libri iii. Id. _Tardarum Passionum_, Libri v. Serenus Samonicus, _De Medicina Præcepta Saluberrima_, a poem on the art of Healing. Theodorus Priscianus, _Rerum Medicarum_, Libri iv. [Illustration: EXAMPLES OF ANCIENT SURGERY. Fig. 1. Representation of the mode of reducing dislocation of the thigh outwards, as given by M. Littré. Fig. 2. Representation of the ancient mode of performing succussion, as given by Vidus Vidius in the Venetian edition of Galen’s works (_Cl._ vi., p. 271). [_Face p._ 204.] CHAPTER IV. THE EARLIER ROMAN MEDICINE. Disease-Goddesses.—School of the Methodists.—Rufus and Marinus.—Pliny.—Celsus.