Url https://edisondigital.rutgers.edu/document/N015016 Resource class dctype:Text Title [N015016] Technical Note, December 1878 Creator Upton, Francis Robbins Subject Sound and acoustics Heat and thermodynamics Electricity and magnetism Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1878-12-00 Type Technical Note Identifier N015016 Source 30:526 Rights Thomas Edison National Historical Park Has Version https://archive.org/details/edisonmicrofilm30/page/n535/mode/1up Archive.org Viewer, Microfilm Series Reel 30 Is Part Of N015-F Uri https://edisondigital.rutgers.edu/document/N015016 https://edisondigital.rutgers.edu/document/N015016 --