In addition to herbalism and acupuncture, Chinese Medicine has a rich tradition of using stones as medicine, passed from generation to generation for thousands of years. In this comprehensive guide and extensive Materia Medica, Leslie J. Franks presents the Stone Medicine teachings of Dr. Jeffrey C. Yuen, an 88th generation Taoist priest from the ancient lineage of the Jade Purity School, which dates to the Han dynasty, 206 BCE.