- Obstetrics, [31], [93]
- Octavianus, [55]
- Oculists, [70]
- Operations, [29], [30], [78], [113]
- ——, dental, [2]
- Oribasius, [87], [93], [114]
- Orphanages, [132]
- Ovid, [24]
- Pathology, [104]
- Paulus Ægineta, [94], [113], [124]
- Period, anatomic, [21], [45]
- Pestilence in Rome, [89]
- Philenus of Cos, [48]
- Philosophy, [56]
- Plague, [4], [120]
- Plato, [25], [39]
- Platonists, [56]
- Pliny, [3], [52], [65], [72], [84], [146]
- Plutarch, [5], [7]
- Pneumatism, [86]
- Podalarius, [16]
- Poisoners, women, [70]
- Priest-physicians, [1], [134]
- Priests, [18]
- Proclus, [140]
- Ptolemy, [43]
- Public health regulations, [161]
- Pythagoras, [21]
- Pythagoreans, [22]
- Saints, [138]
- St. Luke, [139]
- St. Paul, [139], [148]
- Sanitation, [8], [155]
- Sceptics, [24]
- Scribonius largus, [82]
- Seneca, [67], [131]
- Serapion, [50]
- Serpents, [14]
- Sewers, [8], [9], [159]
- Slave-physicians, [60]
- Slaves, [60]
- Soranus, [92]
- Stoics, [56], [129]
- Suetonius, [140]
- Surgery, [30], [73], [107]
- Surgical instruments, [90]
- Tacitus, [140]
- Temple of Æsculapius, [4], [14], [17]
- Temples, [3], [4], [17]
- Themison of Laodicea, [23], [53], [54]
- Theophrastus, [42]
- Theriaca, [98]
- Thermæ, [152]
- Thessalus of Tralles, [83]
- Thrasyllus, [66]
- Tiberius, [66]
Transcriber's Note and Errata
Hyperlinks in the List of Illustrations point to the actual illustrations, rather than to the pages.