A brilliant book and a milestone of modern homeopathy. It was the first step to a deeper understanding of the mineral remedies in our materia medica. This is achieved by analysis of the individual components of the salts (such as Calcium, Natrium, Manganum, etc. and muriaticum, carbonicum, bromatum, etc.). Scholten called this method group analysis. If we understand the themes of the individual components, we can predict the qualities of any possible compound using these building blocks. This led to the introduction of many new remedies (for example, Calc-m) into homeopathic therapy. They have since been successfully prescribed worldwide to thousands of patients. This work was the first step to the Element Theory, which is described in Homoeopathy and the Elements.»