Unpublished letter, regarding fossils from Giovanni Arduino to unknown recipient Arduino describes his chemical experiments on coal and wood fossils found in the area surrounding Venice [Italy]. Finishes with a short extract of a letter from Guido Vio, dated 13 October 1781, in which he discusses fossilised minerals found in Pleyberg [Bad Bleiberg, Carinthia, Austria]. Subject: Palaeontology / Geology Written by Arduino in Venezia [Venice]. 9 January 1782