To: Files Subject: SI and H FAperimentation, March 1952 On Tuesdly, 4 March 1952, in Bliilding 1 SI d H experiments were c.a r 3 a... Sincle-'.the films for the training film had been developed, the entire evening".(4as2 devoted to studying the films and.making'the nec essary notes for retakes or different approaches. In the opinion and the writer, the films are va liable in that they sl7,w,@so@ineite'chnical errors and clearly indi- cate that in some instances, the hypnotic sequence's were0 not demon- strated as effectively as we thought necessary. Petween one-quarter and one-third of the film is very good and can-be used.in the final production.. No technical experiments were carried out at this session* 4 .@;,i