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Le Système de Télégraphes et de Sémaphores à l'Usage de la Marine est un manuel pratique pour les télégraphistes et les opérateurs de sémaphores de la marine française du XIXe siècle. Le livre décrit les différentes méthodes de communication à distance, les règles de transmission, et les codes de signaux utilisés en France et dans les autres pays européens. Ce livre est une source indispensable pour les historiens de la communication et de la technologie.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.