And now, having brought my laborious undertaking to a conclusion, I would embrace the present opportunity of returning my most sincere expression of thanks to the Council for the honour which they conferred upon me in selecting my work for publication, and for the very flattering terms in which they speak of the first volume in the Annual Report of their proceedings for 1845. I trust that whatever degree of merit they discovered in _it_ will be found not to be wanting in the succeeding parts, and that, taken together, the three volumes will be acknowledged to constitute a more copious repertory of ancient opinions on professional subjects than is to be found elsewhere. If such be the judgment which the intelligent members of the Sydenham Society shall generally pronounce on my work, I shall certainly never regret the time and exertions which I have bestowed upon it. τοιόν δ’ ἀπέβη τόδε πρᾶγμα, F. A. BANCHORY, _June 21st, 1847_. CONTENTS OF THE THIRD VOLUME. SEVENTH BOOK. SECT. PAGE 1. On the Temperaments of Substances as indicated by their Tastes 1 2. On the Order and Degrees of the Temperaments 2 On the powers of simple medicines 6 3. On the Powers of Simples individually 17 Appendix to the Third Section—On the Substances introduced into the Materia Medica by the Arabians 424 4. On Simple Purgative Medicines 480 On those things which evacuate bile 481 Medicines which evacuate black bile 483 Medicines which evacuate phlegm ib. Medicines which evacuate water 484 On cholagogues 489 On melanogogues 491 On phlegmagogues 492 On hydragogues ib. 5. On Compound Purgatives 493 6. On the Management of those who take Purgative Medicines; and what is to be done to those who are not purged by a proper dose of Purgatives 497 7. On the Treatment of Hypercatharsis 499 8. On the Antidotes called Hieræ 500 9. On Liniments to be applied to the Anus, and purgative Applications to the Navel 502 10. On Emetics 503