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Interesting experiments : Series of 25 (United Tobacco Companies (South) Ltd)
George Arents Collection, The New York Public Library. "Finding the relative illuminating power of lights." The New York Public Library Digital Collections. 1850 - 1959. https://digitalcollections.nypl.org/items/5e66b3e8-8dca-d471-e040-e00a180654d7
George Arents Collection, The New York Public Library. "Finding the relative illuminating power of lights." New York Public Library Digital Collections. Accessed April 26, 2024. https://digitalcollections.nypl.org/items/5e66b3e8-8dca-d471-e040-e00a180654d7
George Arents Collection, The New York Public Library. (1850 - 1959). Finding the relative illuminating power of lights. Retrieved from https://digitalcollections.nypl.org/items/5e66b3e8-8dca-d471-e040-e00a180654d7
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(still image)
Finding the relative illuminating power of lights., (1850 - 1959)
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