First edition, separately-paginated offprint of this early publication on electricity and magnetism in which Ampère and Babinet review the latest discoveries concerning electromagnetism. Papper first published as a supplement to the French translation by Jean-René-Denis-Alexandre Riffault of the fifth edition of Thomas Thomson's Système de chimie. Ampère notably presents his famous rule called "Ampère's rule" which describes the direction in which a magnetized needle moves near a conducting wire in which a current flows. His galvanometer, a device for measuring current intensity. As well as the idea of an electric telegraph system. Book that bears witness to the excitement caused among physicists by Oerstedt's experiment in 1820 which opened a new scientific field, electromagnetism. A very complete copy of the last leaf (table and errata) which is usually missing.
references: Mottelay [p.482 : "a very valuable treatise"].