AN IMPROVED TYPE OF SWAGE BLOCK. AN IMPROVED TYPE OF SWAGE BLOCK. A METHOD OF MAKING GLASS MODELS OF MINES. WORKINGS. THE ' SOO' SHIP CANAL SYSTEM—THE FIFTIETH ANNIVERSARY OF ITS COMMENCEMENT. BY DAY ALLEN WILLEY., scientific american, 1903-06-06
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IMPROVED TYPE, SWAGE BLOCK, IMPROVED TYPE, SWAGE BLOCK, METHOD, MAKING GLASS MODELS, MINES, WORKINGS, ' SOO' SHIP CANAL SYSTEM— FIFTIETH ANNIVERSARY, ITS COMMENCEMENT, DAY ALLEN WILLEY, scientific american, 1903-06-06, 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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