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OCR Page 1 of 2Nov. 11,1938.
Commander C.S. Stephenson,
Buroau of Medicine & Surgery,
Washington, d.C.
Dear Commander Stephenson:
Since your visit hore we have given considerable thought
to the practicability of the use of the sensitive electroscope
developed by Dr. Curtiss as a control method in luminous material
application plants. Thero is no doubt about this being a very
delicate instrument and if used by an expert. suoh as Dr. Curtiss
would have value in locating any possible hazards from radioactivity,
especially in plants handling quantities of material such as ourso
However, in the hands of those not specially trained or possessing
considerable knowledge and skill, in our opinion the instrument is
too delicate to have any great value.
It seems to us that the hoalth angle so far as the luminous
application is concerned is largely dependent on strict supervision
of the operators to see that sanitary conditions are obsorved. In
the average application plant, there is very little possibility of
any radium contamination except through careless of sloppy handling
of the material. Periodic examinations by the ultra violet light
method would determine any wasted luminous material and would have
the advantage of locating it, whereas if the electroscope was used
the only thing it would do would be to deternine the presence of
radio-activity wâthout specifically locating it.
Our reactions given above may not conform to your own ideas,
but we are sure you will accept thom in the spirit in which they
aro offerod.
Very truly yours,
CBLeo :DK
President
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