"The effect of low color temperature illumination and red illumination upon subsequent dark adaptation." R.T. Mitchell. MRL# 146, Aug. 5, 1949

"The effect of low color temperature illumination and red illumination upon subsequent dark adaptation." R.T. Mitchell. MRL# 146, Aug. 5, 1949, Box: 1, Folder: 6. Forrest Lee Dimmick papers, 2862. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/379574 Accessed October 31, 2025.