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TREASURY DEPARTMENT
BUREAU OF
THE PUBLIC HEALTH SERVICE
OFFICE OF
INDUSTRIAL HYGIENE
WASHINGTON, D. C.
AND SANITATION
Room 1-123, "C" Bldg.,
16 Seventh St., S. W.
January 12, 1932
Mr. H. H. Barker,
Vice President,
United States Radium Corporation,
JAN 13 1932
535 Pearl Street,
New York, N. Y.
Dear Mr. Barker:
I was glad to hear from you again, and to receive
your letter of January llth.
We did not determine the electrostatic capacity
of the Wulf-Itess gamma ray electroscope which you so
very kindly loaned us for our recent investigations,
nor did we determine the voltage which corresponds to the
scale readings on the instrument. We simply determined the
rate of fall of the leaf corresponding to the quantity of
radium placed at a known distance.
I much regret that we cannot send you the infor-
mation for which you ask.
With best regards, I am,
Yours sincerely,
James E. Ives
(James E. Ives)
Senior Physicist
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"ocrText": "TREASURY DEPARTMENT\nBUREAU OF\nTHE PUBLIC HEALTH SERVICE\nOFFICE OF\nINDUSTRIAL HYGIENE\nWASHINGTON, D. C.\nAND SANITATION\nRoom 1-123, \"C\" Bldg.,\n16 Seventh St., S. W.\nJanuary 12, 1932\nMr. H. H. Barker,\nVice President,\nUnited States Radium Corporation,\nJAN 13 1932\n535 Pearl Street,\nNew York, N. Y.\nDear Mr. Barker:\nI was glad to hear from you again, and to receive\nyour letter of January llth.\nWe did not determine the electrostatic capacity\nof the Wulf-Itess gamma ray electroscope which you so\nvery kindly loaned us for our recent investigations,\nnor did we determine the voltage which corresponds to the\nscale readings on the instrument. We simply determined the\nrate of fall of the leaf corresponding to the quantity of\nradium placed at a known distance.\nI much regret that we cannot send you the infor-\nmation for which you ask.\nWith best regards, I am,\nYours sincerely,\nJames E. Ives\n(James E. Ives)\nSenior Physicist"
}