A detailed treatise on the uses of the organic plant Comfrey in herbal medicine. First published in 1936, this guide to ancient herbal remedies focuses on the uses of Comfrey in alternate medicine. Comfrey is a plant of the genus Symphytum, a plant that is widely used in organic gardening and has extraordinary medicinal purposes. The contents of this volume feature: - Origin of Research - History of Comfrey and of its Medicinal Uses - Clinical Observations with Comfrey - The Chemical Research - Chemistry of the Chizome - Identification of Allantoin - The Chemical Physiology of Allantoin - Distribution of Allantoin in the Vegetable Kingdom - Experiments with Plants - Clinical Observations