AN IMPROVED ELECTRIC CURRENT REGULATOR. CROUCH'S RHEOSTAT. AN IMPROVED DRAUGHT EQUALIZER. BEVENS' DRAUGHT EQUALIZER. Planting Trees. AN AUTOMATIC CABLE PROPELLER FOR VESSELS. LOTZE'S CURRENT PROPELLER FOR VESSELS. A DEVICE FOR EXTINGUISHING FiRES ON SHIPS. TRAVIS' FIRE EXTINGUISHER FOR SHIPS. AN IMPROVED MACHINE FOR TURNING TENONS. ROGERS' MACHINE FOR TURNING TENONS., scientific american, 1889-06-15
Keywords:
IMPROVED ELECTRIC CURRENT REGULATOR, CROUCH'S RHEOSTAT, IMPROVED DRAUGHT EQUALIZER, BEVENS' DRAUGHT EQUALIZER, Planting Trees, AUTOMATIC CABLE PROPELLER FOR VESSELS, LOTZE'S CURRENT PROPELLER FOR VESSELS, DEVICE FOR EXTINGUISHING FiRES, SHIPS, TRAVIS' FIRE EXTINGUISHER FOR SHIPS, IMPROVED MACHINE FOR TURNING TENONS, ROGERS' MACHINE FOR TURNING TENONS, scientific american, 1889-06-15, 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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