HELMONT, FRANCISCUS MERCURIUS VAN. Paradoxal Discourses concerning the Macrocosm and Microcosm, or the Greater and Lesser World and their Union. Set down in Writing by J.B. and now Published. London: J.C. and Freeman Collins, 1685. 2 parts in one, 8vo, red straight-grained morocco gilt, g.e.; lacks both plates, otherwise fine. Rare. Wing H1393.