Url https://edisondigital.rutgers.edu/document/PA015 Resource class dctype:Text Title [PA015], Article, Thomas Alva Edison, August 1887 Creator Edison, Thomas Alva Subject Scientific and other instruments Electricity and magnetism Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1887-08-00 Type Article Identifier PA015 Source 146:50 Relation American Association for Advancement of Science Has Version https://archive.org/details/edisonmicrofilm146/page/n59/mode/1up Archive.org Viewer, Microfilm Series Reel 146 Is Part Of PA2-F Uri https://edisondigital.rutgers.edu/document/PA015 https://edisondigital.rutgers.edu/document/PA015 --