One of two major medical treatises by medieval healer Hildegard von Bingen, presented in its entirety for the first time in English during the 900th anniversary of her birth. * A seminal text in the development of Western herbal medicine * Presents nine categories of healing systems--Plants, Elements, Trees, Stones, Fish, Birds, Animals, Reptiles, and Metals--and elaborates on their medicinal use * Closely related to Eastern medical approaches that...