75/1954 Glauber, J.R. Explicatio Tractatuli, qui Miraculum Mundi inscribitur. Frankf., Th.M. Sörens, 1656, 62p., contemp. vellum, sm.8vo. - BOUND WITH: Idem. Prosperitas Germaniae pars prima. In qua de Vini, Frumenti, & Ligni concentratione, eorundemque utiliore, quàm hactenus, usu agitur. Amst., J. Janssonius, 1656, (10),118p.

- The first work rather seriously browned/ waterstained. Two blank margins repaired. The second work rather unobtrusively (water)stained in lower margin. Vellum over frontcover restored.

= Ad 1. The first Latin edition, published in the same year as the German version. Ferguson I, p.325 note; Duveen, p.254 (Latin ed., Amst., Janssonius, the same year); Caillet 4582 (German ed., Amst., Janssonius). Lists 39 chemical experiments. Ad 2. The first part only of 6, complete in itself. The first Latin edition, published together with the German version "Teutschlands Wohlfahrt". Ferguson I, p.327; Duveen p.256; Caillet 4587; Oberlé, Fastes 85; Schoene 4369. "Johann Rudolf Glauber (1603-1670?) was a pioneer chemist who was deeply involved with alchemical speculation. In 1648 he moved from Vienna to Amsterdam and remained there for the rest of his life as founder and director of an "Hermetic Institute". He discovered a salt named after him". (Manly P. Hall coll., p.81).