IMPROVED OPTOMETER. IMPROVEMENT IN ANIMAL SHEARS. The Pilate Census. Proposed Lake Erie and Ohio River Ship Canal. IMPROVEMENT IN WATER ELEVATORS. IMPROVED WATER ELEVATOR. Dangers of Athletic Training. MISCELLANEOUS INVENTIONS., scientific american, 1881-05-07
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IMPROVED OPTOMETER, IMPROVEMENT, ANIMAL SHEARS, Pilate Census, Proposed Lake Erie, Ohio River Ship Canal, IMPROVEMENT, WATER ELEVATORS, IMPROVED WATER ELEVATOR, Dangers, Athletic Training, MISCELLANEOUS INVENTIONS, scientific american, 1881-05-07, 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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