Celsus—Roman pharmacy—Methods of administration—Antidotes—Grecian remedy for hydrophobia—Chemical bodies and drugs employed by the Greeks and Romans—Dioscorides—His work on _materia medica_—Ancient method of collecting opium—Preparation of wool fat—Drugs used in Pompeii and Herculaneum _pages_ 39-46 CHAPTER VI. ALCHEMY—THE ALCHEMISTS. Origin of the term chemistry—Practice of the hermetic science by the Egyptians—Al-Chindus—Geber—Rhazes—Merlin—St. Dunstan—Albertus Magnus—Vincent de Beauvais—Raymond Lulli—Arnauld de Villeneuve—Roger Bacon—Antonio Quainer—Discoveries made by the early alchemists—Eck—John Baptist Porta—Cornelius Agrippa—Dr. Dee—Symbols of the alchemists _pages_ 47-63 CHAPTER VII. THE PHILOSOPHER’S STONE. Alchemical research—Its objects—Supposed composition of the Philosopher’s Stone—Claimants to the discovery—The theories of Rhazes, Merlin and Bacon—Bacon’s definition of alchemy—Ripley’s process—The Elixir of Life—The theories of Paracelsus—His secret elixirs—Elixir Vitæ _pages_ 64-71 CHAPTER VIII. THE BLACK ART AND OCCULT SCIENCES. The antiquity of magic—Early magicians and wise men—Variety of forms practised—Oneiromancy—Theurgy and Goetry—Historic dreams—Necromancy—Methods of evocation—Chiromancy—Origin of the practice—Astrology—Its antiquity—Famous astrologers _pages_ 72-78 CHAPTER IX. THE ART OF FORETELLING. Influence of the planets and signs of the Zodiac—Casting horoscopes—Methods of divination—Crystal gazing—Dactylomancy—Pyromancy _pages_ 79-82 CHAPTER X. BLACK MAGIC. Practice of magic by the early alchemists—Demonology—Initiation of novices—Taking the oath—The ceremonial—Perfumes employed—Composition of the incense used—Black magic by burning—Witchcraft—Methods of practice—Trial of the Duchess of Gloucester—The “evil eye”—Apparitions in the sky—A witches’ Sabbath—Appearance of the devil—Origin of the word “witch”—Their initiation and pact _pages_ 83-89 CHAPTER XI. SUPERSTITION AND ITS INFLUENCE ON MEDICINE. Origin of incantations and charms—The cure of disease by poetry and music—Ancient theory of the cause of disease—Precious stones as remedial agents—Influence of the planets on herbs—Survival of old superstitious customs—The “coral and bells”—Sympathetic powders—Curing by touch—Empirical nostrums—The doctrine of Signatories—Ancient superstitious practices _pages_ 90-97 CHAPTER XII. LOVE PHILTRES. Composition of philtres—Roman love philtres—Law against their use—Greek Love philtres—Ingredients employed—Botanomancy—“Water of Magnanimity” _pages_ 98-101 CHAPTER XIII.