Friedrich Gustav Jakob Henle, Or Julius, a German physiologist, born in Furth, Bavaria, July 9, 1809. He studied medicine at Heidel-berg and at Bonn, receiving his degree of doctor in the latter place in 1832, and went to Berlin, where he was appointed assistant at the anatomical museum. In 1834 he became prosector to the medical faculty of the university, but having been convicted of affiliating with the secret societies of the students called the Burschenschaften, he was imprisoned, and, though soon pardoned and released, was not able till 1837 to establish himself in the university as a private tutor. For three years he gave instructions in pathology and in microscopic anatomy, the latter a branch of science which he was the first to develop; and in 1840 he accepted the professorship of anatomy and later of physiology in the university of Zurich. Previous to this he had been a contributor to the "Annual Reports" of Canstatt, and had published Ueber Schleim- und Eiterbildung (Berlin, 1838); Vergleichende Anatomie des Kehl-kopfes (Leipsic, 1839), describing the development of the larynx in animals, from man down to the lowest types of creation; and Patholo-gische Untersuchungen (Berlin, 1840), a series of observations on the nervous system, the periodical nature of certain maladies, miasma, etc.

While at Zurich he aided Pfeufer in establishing the Journal de medecine rationelle. Between 1844 and 1852 he filled the chair of anatomy, physiology, pathology, and anthropology at Heidelberg. Within this period appeared his most important work, Handbuch der ra-tionellen Pathologie. In 1852 he became professor of anatomy and director of the anatomical institute at Gottingen. His employment of the achromatic microscope for anatomical purposes opened a wide and interesting field i of observation to scientific men. Among his remaining works are Handbuch der allgemeinen Anatomie (Berlin, 1841), and Handbuch der systematischen Anatomie des Menschen (3 vols., Brunswick, 1855-'04, and 18G8).