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Harper's Encyclopedia of United States History (ed. Benson Lossing) 4 4 Browse Search
H. Wager Halleck , A. M. , Lieut. of Engineers, U. S. Army ., Elements of Military Art and Science; or, Course of Instruction in Strategy, Fortification, Tactis of Battles &c., Embracing the Duties of Staff, Infantry, Cavalry, Artillery and Engineers. Adapted to the Use of Volunteers and Militia. 2 0 Browse Search
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Harper's Encyclopedia of United States History (ed. Benson Lossing), Navigation acts. (search)
the system was early known, the development of proper structural devices was of slower progress. As early as 1823 Captain de Montgery, of the French navy, published a valuable work entitled Memoire sur les Navires en Fer, in the form of papers in the Annales de l'industrie Nationale et Étrangere, which were subsequently reprinted in a small book in 1824. Captain Montgery introduced his work with the remark that one might, perhaps, trace the origin of iron vessels to an invention of Demetrius Pen he was besieging Rhodes, 304 years before the present era. After some other interesting historical researches, Captain Montgery pointed out that the chief obstacle to successful shipbuilding in iron at that time (1823-24) was due to the lack of practical shipbuilders. These achievements came along quite slowly during the twenty years immediately following Captain Montgery's suggestion. The capacity of plate and shape mills was limited to small sizes and light weights. Punching, bendin