Paris: Fortin, Masson, 1842. Wraps. First Edition. 512 pp. 8vo. Half leather binding with brown leather spine with gold embossed titling and paper patterned boards. Wear and losses to leather at head and foot of spine, losses at hinges. Marbled endpapers, clean within, slight darkening to folding plate of illustrations tipped in at rear. Very Good.
First published account of Carlo Matteucci's (1811-1868) experiment in which he discovers that each heartbeat of a frog is accompanied by an electrical signal. This discovery eventually forms the basis for electrocardiography (EKG). Figures 1 & 2 of dissected frog legs on folding plate at rear help to illustrate the theory.