Juliæ et Montium Subterranea Sive Fossilium variorum per utrumque Ducatum hinc inde repertorum Syntagma, in quo singula breviter recensentur ac descri [...] / quæ quidem collecta hucusque servantur in Museo Francisci Beuth. Düsseldorpii : Zehnpfenning, 1776 : [Hauptbd.]. 1776