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    "localId": "75729673",
    "label": "Letters Received to C.B. Lee, October 13, 1939",
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    "title": "Letters Received to C.B. Lee, October 13, 1939",
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        "Safety Light Collection",
        "Records Related to Radium Dial Painters"
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    "ocrText": "UNIVERSITY OF MINNESOTA\nINSTITUTE OF TECHNOLOGY\nMINNEAPOLIS\nOctober 13, 1939\nSCHOOL OF CHEMISTRY\nOFFICE OF THE DEAN\nMr. C. B. Lee\nUnited States Radium Corporation\n535 Pearl Street\nOCT 16 1939\nNew York City\nDear Mr. Lee:\nThis year, as President-Elec of the American Chemical Society,\nI am making a number of lectures before local sections of the Society\nin which I wish to refer to the use of radium in the United States.\nI wonder if you would be so kind as to give me some information\nabout the present status of the luminous paint industry. I have not\nkept close track of it lately, and wi th the death of Barker and\nSchlundt, I hear less about it than ever.\nIs the industry growing, if so, in what directions? Is there\nan extensive use of luminous paint on airplane dials as there was\nin the last war? Do you know about how many dials are luminated\non any of the planes? Is the use limited to military planes? Do\nyou anticipate that there will be any marked increase in its use on\naccount of the war? Are there any new applications of luminous\npaint that have come in in the past few years? To what extent do\nyou still use mesothorium instead of radium?\nYou may be interested to know that Dr. R. D. Evans of the\nMassachusetts Institute of Technology made a count on the radium in\nmy body recently. Direct radiation showed a negative result, but a\npreliminary exhalation test showed about one-third of a microgram.\nDr. Evans is now making a second test. I would not be inclined to\nregard this amount as dangerous, but they have been dropping the\ndanger limit so rapidly in the past few years, that one cannot feel\nsure. Dr. Evens recommends that I take the calcium elimination treat-\nment. I do not feel the need of it at all, but may decide to do so\nas a precautionary measure.\nAre there any recent developments in the precautions that you\nare taking in that connection. Naturally I will not mention the\nname of your company in any connection that you do not wish.\nWith best regards.\nSincerely yours,\nS.A.Lind\nscl/g\nS. C. Lind, Déan"
}