moncel count (3 Ergebnisse)

Hardcover. Zustand: Good. First Edition. 277pp. Burnt orange cloth, burgundy lettering. 70 illustrations. Front hinge exposed. rear cover and spine significantly discolored. Internally clean, unmarked text. "The first English edition of a work originally published in Paris in 1878, this book is an important early contemporary account of the gestation of three important and interrelated inventions. Heavily documented and supported by valuable engraved illustrations, most of Count Du Moncels work is devoted to telephones. He discusses telephone development and competing systems as well as describing the experimentation taking place during the period of Bell's 1876 patent application. Briefer attention is given to the initial stages of microphone technology and information is included about Edison's phonograph." Size: Octavo. Book.

Cloth. Zustand: Fair. Zustand des Schutzumschlags: No Dust Jacket. First American Edition. 277 pp + ads. Illus 74 figs. Authorized translation with additions and corrections by the author. Small octavo. With ownership inscription of C. H. Sewall, Secretary of the Albany District Telegraph Co. (May 1880) and stamps and signature (1916) from the scientific library of E. A. Faller, a patent attorney. The Count du Moncel was a French aristocrat who became a dedicated scientific explorer and inventor, whose main discovery was the foundation for Edison's carbon transmitter. However, his chief work was writing about electrical science and in this book, he summarizes all the knowledge to date (1879) available on the telephone, microphone and phonograph (unaccountably leaving out the first inventor of the telephone, Reis. ) Beautifully illustrated with figs. Demonstrating the technical aspects of the science. Dark gold cloth covers are worn and damp-lightened at front/back edges. Spine is darkened but legible, spine tips chipped away. Interior Victorian brown endpapers fragile with price sticker scar, scientific library stamps to a number of pages, hinges cracking, binding bit fragile, pages clean with just occasional foxing, one page has old clipping shadow. A fragile copy but one with nice provenance. ; Ex-Library; 8vo - over 7¾" - 9¾" tall; 277 pages.

Zustand: Very Good. Kegan Paul, Trench, & Co. London 1882 Binding: Hardcover 70 illustrations. red cloth with snag to crown of spine. spine is darkened. vg-.