The factors that influence the sensitivity of the retina to color : a quantitative study and methods of standardizing
A 1913 scientific monograph by Gertrude Rand, published by the Psychological Review Company in Princeton and Lancaster, examining how the retina's colour sensitivity varies and how to standardize its measurement. The three photographs show laboratory apparatus, photographed plainly with lettered reference marks, as a record of experimental setup rather than decoration. A designer might take from them the stark, documentary look of early twentieth-century scientific equipment: rotating discs, spoked wheels, and workbench instruments set against bare walls.
