HELMONT, Franciscus Mercurius van (1614-1699). The Paradoxal Discourses ... concerning the macrocosm and microcosm .. set down in writing by J. B., London: J. C. and Freeman Collins for Robert Kettlewel, 1685, 2 parts in one volume, 8° (182 x 112mm.), FIRST EDITION IN ENGLISH, 2 engraved plates (small hole in B3, margins browned, waterstaining towards end), modern old style calf (tightly resewn).