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Columbia University
College of Physicians and Surgeons
DE LAMAR INSTITUTE OF PUBLIC HEALTH
600 WEST 168TH STREET NEW YORK
April 9, 1940
Mr. C.W. Wallhausen
U.S. Radium Corp.
535 Pearl Street
New York City, N.Y.
Dear Mr. Wallhausen:
We have been making tests
with the radium plaques and there is no action
at all on the bacteria. We do however find
a high lethal effect when the milk is exposed
to emanation so I guess our radium work
using plaques is out.
I am sorry that it turned
out this way but apparently that is part of
the trouble with research work.
Yours sincerely,
Fredinck B.G-lin
Frederick B. Flinn
Director of Industrial Hygiene.
FBF: GD
APR 10 1940
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"ocrText": "Columbia University\nCollege of Physicians and Surgeons\nDE LAMAR INSTITUTE OF PUBLIC HEALTH\n600 WEST 168TH STREET NEW YORK\nApril 9, 1940\nMr. C.W. Wallhausen\nU.S. Radium Corp.\n535 Pearl Street\nNew York City, N.Y.\nDear Mr. Wallhausen:\nWe have been making tests\nwith the radium plaques and there is no action\nat all on the bacteria. We do however find\na high lethal effect when the milk is exposed\nto emanation so I guess our radium work\nusing plaques is out.\nI am sorry that it turned\nout this way but apparently that is part of\nthe trouble with research work.\nYours sincerely,\nFredinck B.G-lin\nFrederick B. Flinn\nDirector of Industrial Hygiene.\nFBF: GD\nAPR 10 1940"
}