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Scientific American, Vol. 39, No. 8 (August 1878) (1878)

leaf 3

An illustration from Scientific American, Vol. 39, No. 8 (August 1878), 1878, leaf 3
City of Mexico; St. Petersburg, Russia; Wolver- Kircher, in his Ars Magna et Umbra and in his Phonur- Judged by this standard the United States have been more hampton, Swansea, Hull, and Liverpool, England; Jalapa, gia, mentions a kind of gigantic speaking trumpet, described than ordinarily… … woods has m_uch to do with our success. The selection and preparation of material are no light job; the process of prep- I! aration requires three or four years. Our object is to ob- tain strength with lightness. The American irons are THE HORN OE ALEXANDER. tougher than the English, and we can get…

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