Url https://edisondigital.rutgers.edu/document/MF33AU Resource class dctype:Text Title [MF33AU], Letter from William Henry Meadowcroft to William H Knierim, March 9th, 1918 Creator Meadowcroft, William Henry Subject Light and optics Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1918-03-09 Type Letter Identifier MF33AU Source 280:225 Rights Thomas Edison National Historical Park Date Created 1918-03-09 Has Version https://archive.org/details/edisonmicrofilm280/page/n235/mode/1up Archive.org Viewer, Microfilm Series Reel 280 Is Part Of MF33-F Recipient Knierim, William H Uri https://edisondigital.rutgers.edu/document/MF33AU https://edisondigital.rutgers.edu/document/MF33AU --