Analyse des eaux minérales qui se trouvent au château royal de Marimon [sic] en Hainaut. Made by the orders & under the auspices of Her Serene Highness Mary Elisabeth, Governor General of the Austrian Netherlands, &c. &c. [...]. 8vo (sl. browned, occ. foxing). - Very rare original edition, published in 185 copies only, of this report on the curative virtues of the mineral waters discovered near the royal castle of Mariemont (Hainaut, destroyed 1794), with general considerations on hydrotherapy. - Ref. STCV. - Not in Blake, Morton. - Bound with: Delval, Jean François; Rega, Hendrik Joseph; Villers, S.-A. de - Supplément aux Traités précédens des eaux de Marimont où l'on confirme leurs qualités minérales & vertus salutaires [...]. By Sieur Delval [...]. Ibid, 1742 (Same cond., large damp stain, mouldy spots). Very rare original ed. of the supplement of the previous work. With a focus on 2 other sources and testimonies of people curated with the waters of Mariemont. Ref. UniCat (1 copy). - Not in STCV.