The Pez project also considers sources from its close thematic surroundings, for example the papers of Gottfried Bessel, abbot of Göttweig (d. 1749). Among the things recently discovered there by the project team, a hitherto unknown inventory of the Göttweig collections from the 1730s/40s is of particular interest. A first detailed description of this extraordinary source, highly relevant for the baroque understanding of natural history in Central Europe, has now been published by Bernhard Rameder, who is responsible for the abbey’s collections, in the latest “Yearbook of the Austrian Society for 18th-Century Studies”.