Fig. 12.-THE UNDERGROUND RAILWAY IN NEW YORK.-CROSS SECTIONS OF THE MASONRY TUNNELS. Fig. 13. -THE UNDERGROUND RAILWAY IN NEW YORK.-CROSS SECTIONS OF THE MASONRY TNNEL$ AND VENTILATING SHAFTS., scientific american, 1874-12-12
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Fig, 12.- UNDERGROUND RAILWAY, NEW YORK.-CROSS SECTIONS, MASONRY TUNNELS, Fig, 13, UNDERGROUND RAILWAY, NEW YORK.-CROSS SECTIONS, MASONRY TNNEL$, VENTILATING SHAFTS, scientific american, 1874-12-12, science, scientific, sciences, mind, health, tech, sustainability, publication, lab, sciam, sa, scientist, research, american, experiment, education, discovery, technology, analysis, magazine, u.s., insights, developments, weekly, broadsheet, inventor, innovation, inventions, patented, industrial revolution, emerging, trends, monthly magazine, united states, engravings, curious works, paper, discover, Scientific Paper, Weekly Journal, Practical Information, Art, Science, Mechanics, Chemistry, Manufactures, research, education, scientist, innovation, 19th century, vintage, america, Rufus M. Porter, 1845, journal, academic, newspaper illustrations, retro style, old-fashioned, media illustrations, victorian style, news, newspaperheadline, 19th century style, illustration, journalism
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