The electro-homoeopathic mode of treatment founded by Count, Caesar, Mattei in the year 1865 is based on the principle that vitiated conditions of blood and lymph are the first generating cause of abnormal changes and their morbid effects which gives rise to disease and that complex conditions of the human body can be cured only by complex mixtures of the active principles of various plants. The organon to the new world of electro-homoeopathy introduces the very basic concepts behind its evolution along with life histories of noted electro-homoeopaths, comparison of electro-homoeopathic and homoeopathy modes of treatment, aims and objectives, advantages, underlying laws and principles, essay on Mattei's remedies with their administration and effects and antidotes. The book redefines the modern concept of health and disease, the duties of the physician, and the correct approach to case taking along with a concluding chapter on classification of diseases.