Author: HEMMER, J.J.- Lightning conductor.- 1786.-
Title: Anleitung Wetterleiter an allen Gattungen von Gebäuden auf die sicherste Art anzulegen. Mit einer Kupfertafel.
Description: Offenbach am Mayn, bey Ulrich Weiß und Carl Ludwig Brede, 1786. 8vo. W. 1 fold. engr. plate at the end. Contemp. stiff blue grey paper covers, mounted, spine renewed in near matching colour. (Covers w. soiled spots.). (XIV, 162 pp.). (lower righthand corner a vague waterspot throughout, more visible and pronounced in the prelims and first 25 pages; paper somewhat tired; uncut, unopened.). First edition. Rare publication on lightning conductors. Variants from the same year printed at Mannheim exist.

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