Variations de conductibilite sous diverses influences electriques in Comptes Rendus de l’Academie des Sciences 111, pp. 785-787, 1890
Paris: Gauthier-Villars, 1890. 1st Edition. ORIGINAL PAPER WRAPS, FIRST EDITION, OF THE DISCOVERY OF THE BRANLY EFFECT & THE INVENTION OF THE ‘COHERER’, THE FIRST WIDELY USED SIGNAL DETECTOR FOR RADIO COMMUNICATION. The paper offered here is housed in a custom pamphlet case. Note that we offer Bose's "iron-mercury-iron coherer..... More