Cassebohm was Professor of Anatomy at Halle, and later at Berlin. He was one of several eighteenth-century German anatomists who improved on the work of their Italian counterparts in the study of the anatomy of the ear. Cassebohm's treatise on the anatomy and physiology of the ear completes the investigations made by Valsalva in his De aura humana tractatus (1704). Tracts 1-4 of Cassebohm's work describe the temporal bone, external ear, the tympanic cavity, and its contents. Tract 5 describes the aural labyrinths, and 6 a monstrous formation of a double ear in a six-month fetus. The work is illustrated by six folded plates, engraved by Anton Balthazar König of Berlin (ca. 1693-1773). .
