Many of Marco Aurelio Severino’s works were published in Germany, thanks to the intercession of his pupils. The prestigious Nürnberg physician Johann Georg Volkamer was Severino’s closest pupil. A relevant manuscript letter of Severino to Volkamer sheds new light on the context of the edition of Severino’s Zootomia democritaea. The correspondence between Severino and Volkamer was firstly studied by Luigi Amabile in the Ninteenth-century, and it was fully exploited by Maurizio Torrini about a century later.