Dr. Jahr was born in Neu Dietendorf (Saxe-Gotha), in January, 1800.
He completed his classical education in the institutions of the Moravian Brethren, especially at Niesky, in Silesia, and his success was so brilliant that he passed without a period of transition from the benches of the students to the chair of the professor.
Having suffered from a serious illness during the years of his professorship, he had recourse to Dr. Aegidi, the distinguished Homoeopathist of Dusseldorf, who restored him with unlooked for promptness, and this caused trial to share the enthusiasm for the doctrines of Hahnemann.
