Url https://edisondigital.rutgers.edu/document/D7804J Resource class dctype:Text Title [D7804J], Letter from Henry J Thomas to Thomas Alva Edison, October 18th, 1878 Creator Thomas, Henry J Subject Carbon, coal, glass, ceramics Incandescent lamp Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1878-10-18 Type Letter Identifier D7804J Source 16:819 Rights Thomas Edison National Historical Park Date Created 1878-10-18 Has Version https://archive.org/details/edisonmicrofilm16/page/n827/mode/1up Archive.org Viewer, Microfilm Series Reel 16 Is Part Of D7804-F Recipient Edison, Thomas Alva Uri https://edisondigital.rutgers.edu/document/D7804J https://edisondigital.rutgers.edu/document/D7804J --