375 Essential Oils And Hydrosols Author:Jeanne Rose In this major field guide to a wide range of essential oils and hydrosols, Jeanne Rose profiles 375 different substances used in aromatherapy according to botanical family, habit and growth, chemical components, actions, and uses. Rose, a leading herbalist involved in aromatherapy, adds historical lore from Chinese alchemy and botany as well as... more » western botanical sources, enhancing what we know about these substances. Rose describes medical properties and uses, and provides new information about hydrosols, what she calls "the homeopathy of aromatherapy," a true synergism of herbalism and aromatherapy. Included are Jeanne Rose's essays on evergreens, lavendar, chamomile, jasmine, essential oils of the Old Testament, descriptions of distilleries and the process of distillation, as well as a marvelous and thorough listing of all the many kinds of thyme.« less