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OCR Page 1 of 2August 12, 1937
Dr. G. Failla,
Central Park Test at 106th Ste,
New York, N.Y.
Dear Dr. Failla:
Wie are sending you herewith by messenger 10.5
grams of U.S. free enanating compound which contains ap-
proximately 10.5 milligrans of radiun element. This amount
of radium represents the recovery from the two needles which
you sent to our laboratories somo time ago containing 4.81
milligrems and 7.04 milligrans radium eloment respectively.
shall be interested in hearing about the out-
come of your experiments to determine the usability of free
emanating compound as a substitute for the ordinary aqueous
solutions now used in radon collection apparatus.
With krind regards, I ame
Sincerely yours,
Vice=President
eno
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