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James Parton, The life of Horace Greeley 4 0 Browse Search
Harper's Encyclopedia of United States History (ed. Benson Lossing) 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 Poliorcetes when 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 suitable machinery for working and shaping the material. This, he said, could not be done by hand as in the case of wooden ships, and he left the matter of inventing or adapting the necessary mechanical appliances for metal constructi