First published in 1936, this volume contains a detailed treatise on the uses of Comfrey in medicine and herbalism. Comfrey is the name given to plants of the genus Symphytum, which have widely been used in organic gardening and herbal medicine. Contents include: "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", etc. Many vintage books such as this are increasingly scarce and expensive. It is with this in mind that we are republishing this volume now in an affordable, modern, high-quality edition complete with a specially commissioned new introduction on herbalism.