This book introduces the verifications from the author's own experience during a period of twenty-five years and more. He has gleaned from Hahnemann's Materia Medica Pura and his Chronic Diseases, Allen's Materia Medica, including the first eight volumes, Hering and Lippe's Materia Medica, Guersney's Obstetrics, Raue's Pathology and Therapeutics, Baehr's and Kafka's Therapeutic, Hales New Remedies.