Index, Advertisers, Aermotor C, 2 Allen F, S, Allen 0, & Son, 2 Alteneder & Sons, 0 1 American Ball Nozzle C, American Bell Telephone C, 8 American Gas Furnace C, 105 American Homes Publishing C, 2 American Silk Mfg, American Steam Gage C, 99 American Typewriter C, 2 American Well Works, 0 American Writing Machine C, cover 2 Anderson Copying Machine Co 101 Anderson, J, liE, 0 Anderson Prof, 3 Andrae Julius & Sons Co, 3 Apollo Iron, Steel C, cover 2 Armstrong Bros, Tool C, 102 Armstrong Mfg, Co, cover 4 Andel & C, 3 Automatic Guide Mfg, C, 103 Backus Water Motor Co 4 Bailey, F, E, 2 Bain F, 107 Baird Henry Carey & C, 5 Ballard H, H, 95 Baragwanath & Son, 4 Barnes, W, F, & J, C, 105 Battenberg Effie M, Beaudry & C, 102 Beckley, J, & C, M Belknap Motor C, 102 Bemis & Call Hardware, Tool C, 3 Berkefeld Filter C, Besly C, H, & C, 8 Bethlehem Foundry, Machine C, 108 Beveridge Mfg, C, 2 Bicycle Appliance C, 0 Black Correspondence School, 5 Blake & Johnson, Bliss School, Electricity, 5 Boker Mfg, C, 103 Bommer Bros, 101 Boston Belting C, 0 Boston Motor C, 105 Bowman, E, F, & C, 8 Bradford Burner Co, 107 Brameld Wm, 100 Bridgeport Deoxidized Bronze & Metal Co.cover 3 Bridgeport G, 104 Bridgeport Wood Finishing C, 8 Bristol C, 8 Brooke Spring, Seat Post C, 109 Brown J, L, & Co, 103 Brown S, N, & Co, 101 Brown & C, 109 Bryden Horseshoe C, 95 Buck Bros, '10 int T, S, o Seal, Press C, 109 104 Bullock M, C, Mfg, C, 100 Burkhard G.j, & Son, 105 C Cady C, N, 8 Caldwell H, W, &Son C, Caldwell W, E, C, Callender Telephone Exchange C, 107 Campbell Twining, 95 Carborundum Co, 5 Card Electric Motor, Dynamo C, 3 Carnegie Steel Co, Ltd, 106 Carpenter G, B, & C, 101 Cash Buyer' Union, 4 Charter Gas Engine C, 8 Chase E, 0, 5 Chester Steel Castings C, 3 Chicago Handle Bar C, 104 Chicago Law School, 98 Chicago Scale C, 6 Chicago alking Machine C, 2 Chicago Tip, T, 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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