ON WEDNESDAY, 22 OCTOBER 1952, SI AND H EXPERIMENTS WERE CARRIED ON IN BUILDING 13, ROOM 20 WITH (DELETED)

� aped Security 22 October 1952. On Wednesday, 22 October 19521i.naccordance with proposed plans as set out in the preceding memorandum, 51 Rnd H exnerimentswere tarried On in Bui1din 13, Room 20, �. For matter of record new volunteers in this w recruitment efforts of sufficient interest i In view'ofjhis .session for two the subjects mentioned above were entirely interested through the others and who had shown erimen a io to_b ng to co-operate...