Attachment 7


    Memorandum from R.S. Pearson, Administrative Assistant, to
          the Area Engineer, Madison Square Area, dated
 October 24, 1946, re:  "Uranium Studies in Humans."  Copy; 2 p.
                     ACHRE No. DOE-121294-D.
Address Reply to        ARMY SERVICE FORCES
The Area Engineer  UNITED STATES ENGINEER OFFICE
                          ROCHESTER AREA
                     P.O. BOX 286, STATION 43,
                         ROCHESTER 7, N.Y.

EIDM R1                                           24 October 1946

Subject:  Uranium Studies in Humans.

To:       The Area Engineer, Madison Square Area, New York, N.Y.
          (Attention:  Mr. Joseph H. Hayner)

     1.   Attached is copy of letter received from Dr. Andrew H.
Dowdy, Director of the Manhattan Department, University of
Rochester, regarding request of Dr. Samuel H. Bassett to give a
departmental seminar on the excretion rate of uranium in humans.

     2.   As Dr. Dowdy states, all of the work on uranium
experiments performed at the University of Rochester have been
declassified.  However, none of the work performed on humans has
been declassified.  Dr. Dowdy states that the patients were Dr.
Bassett's, but it should be borne in mind that all the work
performed by Dr. Bassett was performed at the request of the
Manhattan District Medical Section.  This seminar is to be
conducted for persons who are all Doctors of Medicine and it is
doubtful if this information would get out to any of the families
of the patients or the patients on whom the experiments were
performed.  Other substances besides uranium which Dr. Bassett used
are still on the classified list and this information will not be
divulged at the seminar.

     3.   At the time these experiments were started, this office
was given strict orders that the information should not be released
to any but authorized persons.  Almost all the correspondence and
result of experiments were exchanged between Dr. Wright Langham at
Santa Fe and Dr. Bassett of the University of Rochester.  This rule
is still in effect on some of the material that Dr. Bassett is
using and knowledge of the experiments is kept from personnel at
the Rochester Area.

     4.   With the above in mind, it is requested that the decision
be advanced as soon as possible as Dr. Bassett would like to give
this seminar within a month.

          For the Area Engineer:


Incl.:                             R.S. PEARSON,
#3A ltr dtd 22 Oct. 1946           Administrative Assistant