The Herbal Alchemist's Handbook: A Grimoire of Philtres, Elixirs, Oils, Incense, and Formulas for Ritual Use [Harrison, Karen] on Amazon.com. *FREE* shipping on qualifying offers. The Herbal Alchemist's Handbook: A Grimoire of Philtres, Elixirs, Oils, Incense, and Formulas for Ritual Use