Document dYoYJvdZwjVxyDm6VY2ENdKRQ

January 23, 1939 Mr. F. E, Hart Anaconda Wire and Cable Company Marion, Indiana Dear Mr. Hart: If I were responsible for the medical care of your men at the Marlon plant, I should,at least for a time, examine the man at quarterly Intervals. If the exposure were more serious* I would do this more frequently, but since there is not a very serious exposure, I believe that quarterly examinations would be ample and that in a comparatively short tine you would have a sufficient record on each man so as to provide fairly adequate evidence of their physical condition, and on the extent of their exposure. In the course of these quarterly examinations, I would at the start malts complete blood examinations on each nan. Subsequently if it was demonstrated that no Justification existed for this amount of work, I would at least do a deter mination of the haemoglobin and examine a stained smear for the nicrosdoplo evidence of lead absorption in the form of stippling, negative evidence in this direction built up over a period of time would serve adequately to demonstrate the absence of hazardous exposure. Positive evidence, of course, would Indicate either that the exposure is greater than is anticipated, or that some tiling had happened to change and increase it. Very truly yours. RAKjls Robert A. Kehoa, M.D.