AMPÈRE, ANDRÉ-MARIE. - INCORPORATED IN THE "PRINCIPIA" OF ELECTRODYNAMICS AND THE INVENTION OF THE SOLENOID.

Extrait d'un Mémoire sur les Phénomènes électro-dynamiques. (Communique à l'Academie royale des Sciences le 22 dévcembre 1823). + Suite de l'Extrait, fait par M. Ampère, de son Mémoire sur les Phénomènes électro-dynamiques. + Description d'un Apparail électro-dynamique.

Paris, Crochard, 1824. 8vo. Contemp. hcloth with gilt lettering to spine. In 'Annales de Chimie et de Physique', Series 2 - Volume 26. 448 pp. a. 5 large folded engraved plates. (Entire volume offered). Ampere's papers: pp. 134-162, 246-258 a. 390-411. A bit of browning to halftitle and verso of last plate. A few scattered brownspots.

The first paper is the first appearance of one of Ampere's importent contributions to electrodynamic. This memoir was later incorporated in his great memoir of 1827 "Mémoire sur la théorie mathématique des phénomenes electro-dynamiques....", published 1827, the "Principia" of electrodynamics.

The second paper is the first appearence of the paper in which Ampere describes his invention of the SOLENOID, the electro-magnetic device he used in his early electrodynamical experiments.
"A solenoid is a coil wound into a tightly packed helix. In physics, the term solenoid refers to a long, thin loop of wire, often wrapped around a metallic core, which produces a magnetic field when an electric current is passed through it. Solenoids are important because they can create controlled magnetic fields and can be used as electromagnets. The term solenoid refers specifically to a magnet designed to produce a uniform magnetic field in a volume of space (where some experiment might be carried out)."

The volume contains further importent papers by Poisson "Sur la Chaleur rayonnante", pp. 225-246 + Note.. pp. 442-44, Gay-Lussac, Savart, Pelletier et Caventou, Becquerel etc.

Order-nr.: 48831