Description of a perpetual motion machine

Titled "Descriptio theoretica machinae, quae se ipsam movens, aquam ad altitudinem 32 e 34 pedum elevat, quamdiu partes illius notabilem destructionem non acquirunt : et Methodi quomoda fluvii construendi sunt ut in illis ad versus cursum illorum navigari possibile sit, inventum ab Gotthelf Josepho Schops.

Describing a perpetual motion machine which he invented in 1798, based on the siphon principle. The article was written in Vienna. With letter 1802 Jun 20 (MS 1282/2), Vienna [to] Le Comte de Buquoy, a l'academie theresienne, Vienna.