BOOK III. THE EARLY MIDDLE AGES
| Chapter 24. | The Story of Nectanebus. |
| Chapter 25. | Post-Classical Medicine. |
| Chapter 26. | Pseudo-Literature in Natural Science of the Early Middle Ages. |
| Chapter 27. | Other Early Medieval Learning. |
| Chapter 28. | Arabic Occult Science of the Ninth Century. |
| Chapter 29. | Latin Astrology and Divination, Especially in the Ninth, Tenth, and Eleventh Centuries. |
| Chapter 30. | Gerbert and the Introduction of Arabic Astrology. |
| Chapter 31. | Anglo-Saxon, Salernitan, and other Latin Medicine in Manuscripts from the Ninth to the Twelfth Century. |
| Chapter 32. | Constantinus Africanus. |
| Chapter 33. | Treatises on the Arts before the Introduction of Arabic Alchemy. |
| Chapter 34. | Marbod. |