AN IMPROVISED PORTABLE FOOT BRIDGE. Singular Electric Effect. A LEVELER FOR USE ON MEADOW LANDS ETC. The Toxic Principle of Insect Powder. Figs. 1 to 5 —DETAILS OF PORTABLE FOOT BRIDGE. THOMPSON'S MEADOW LEVELER., scientific american, 1891-01-17
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IMPROVISED PORTABLE FOOT BRIDGE, Singular Electric Effect, LEVELER FOR USE, MEADOW LANDS ETC, Toxic Principle, Insect Powder, Figs, 1, 5 —DETAILS, PORTABLE FOOT BRIDGE, THOMPSON'S MEADOW LEVELER, scientific american, 1891-01-17, 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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