SI AND H EXPERIMENTATION, 9 MAY 1951 (ROOM 20 - BUILDING 13)

.0. To: Files Subject: SI and H Experimentation, 9 May 1951 (Room 20 - Building 13) On Wednesday, 9 May 1951, Messr experiu-.t 'n ..d H between ap with " as ;rolUhteer subjects. � � .4111 ate A /4 3 0,7/40 41111111,Conducted :30 PM and :30 PM an Since this was the initial experiment or test in a continuous series, all subjects were very thoroughly briefed on the nature of the work, the methods, and, to a certain extent, the ultimate aims of the B problem...