The group of eleven remedies known as the Bowel Nosodes are unique in both their derivation and the opportunities that they offer. Although they have some indications in acute prescribing, because of the connection and resonance that they have with the miasmatic forces that are active in the body, they are particularly useful in the treatment of chronic disease. The origin of these remedies lies in human medicine, and there are still major indications in that field. Their development is traced and the concept behind them is explained and discussed within the context of modern homeopathic thought. The general uses of the group in the clinical situation are outlined, and the materia medica of the individual bowel nosodes is discussed. The methodology of using the bowel nosodes is illustrated with nine case histories from the human world and ten from the animal, demonstrating the common guidelines that are applicable to all species. This third edition is revised and expanded to offer readers an even greater insight into this fascinating area of homeopathic practice.