Attachment 3
                                 
                                 
Declassification Section                           March 19, 1947

Major B.M. Brundage, MC, Chief, Medical Division

CLEARANCE OF TECHNICAL DOCUMENTS

SYMBOL: AECT

1.   Reference is made to five technical documents which were
referred to this office for comment.

2.   The Medical Division agrees with Public Relations that the
document "Studies of Human Exposure to Uranium Compounds" should
remain in a classified state at least for the present because of
possible medical legal complications.

3.   The Medical Division also agrees with Public Relations that it
would be unwise to release the paper "Distribution and Excretion of
Plutonium" primarily because of medical legal aspects in the use of
plutonium in human beings and secondly because of the objection of
Dr. Warren and Colonel Cooney that Plutonium is not available for
extra Commission experimental work, and thus this paper's
distribution is not essential to off Project experimental
procedures.

4.   The Medical Division agrees with Public Relations that the
document "Reactions of Human Skin to Single Doses of Beta Rays" may
be released inasmuch as it does not contain experimental work
peculiar to the studies of the Atomic Energy Commission.

5.   We are also in agreement with Public Relations that the paper
"Uranium Excretion Studies" should not be declassified because of
the fact that it is pointed out that certain Commission personnel
were hospitalized for excretion tests.

6.   We disagree with Public Relations on the paper "Catalasuria as
a Sensitive Test for Uranium" inasmuch as it also contains
reference not only to excretion tests on Commission personnel but
also on other patients.

7.   As regards the paper "Health Physics and Its Control of
Exposures at Clinton Laboratories", unless further evidences can be
shown that the material is already released it is felt that the
discussions of decontamination of laundry on Page 3 is still a
matter of classified information.  On Page 6, first paragraph, a
discussion of fatal amount of plutonium in the body should
certainly be referred to Public Relations as we do not believe that
this is a discussion that should be put in unrestricted papers.