Dissertatio inauguralis anatomica de basi encephali et originibus nervorum cranio egredientium libri quinque.

The first accurate enumeration of the 12 cranial nerves, superseding that of Willis (No. 1378). Soemmerring is notable for his accuracy in anatomical illustration. This was his thesis. The same publisher issued an edition for commercial circulation the same year, deleting “Dissertatio inauguralis anatomica” from the title.