1804 - Ritter,J.W.

Ritter,J.W. New experiments and remarks on galvanism. Second letter. On the effect of larger Voltaic columns on the sensory organs, especially on the eye, and on the possible amplification of galvanism itself to infinity. 44 S. - ╔Ders.╗ Some more about northern lights and fireballs, and striking meteorological perceptions on Nov. 20, 1804. pp. 235-242. in: Annalen der Physik. Edited by L.W. Gilbert. Vol. 19. Halle, Renger 1805. 8 (5 folded) copper plates. 3 pp., 496 pp. Hprgt. with rebound. With flap of the OU. Two first editions. - Re I: In this treatise Ritter deals with the question "whether or not the isoelement (the decrease in conductivity) in a given column increases at a faster rate than the voltage" (postscript) and is already close to finding the law formulated by Ohm only two decades later. - Re II: Ritter agrees with the general opinion that thunderstorms are modified northern lights and northern lights are the thunderstorms of the north. - The volume also contains works by Chladni and Davy as well as one on the aeronautical undertakings of Count Zambeccari, a letter by Prechtl on the theory of flight and a report by van Sinderen "Schneller und weit Flug zweier Aerostaten". - Somewhat stained and browned, st. verso T.