It is not contended that such experiments were not carried out. In the course of these experiments two buildings or “blocks” were used. The experiments were conducted in Block 46, and when satisfactory vaccine was decided upon, Block 50 was used for the preparation of vaccines. During the course of the experiments with vaccines in March 1942, Ding himself contracted typhus. Genzken testified that he was aware of the fact that concentration camp inmates were subjected to experiments, but stated that he was not advised as to the method of experimentation. It is clear that the experiments necessary to decide upon a satisfactory vaccine preceded by a considerable period the production of the vaccine. Genzken testified that vaccine production began in December 1943, that the production establishment only moved into Block 50 in the middle of August, and that when production actually began “this establishment had already come under the agency of Grawitz and it was not subordinated any more” to him. Under date of 9 January 1943 the Ding diary contains a lengthy entry stating that by Genzken’s order the typhus research station became the “Department of Typhus and Virus Research,” that Dr. Ding would be head of this department, and that during his absence defendant Hoven would act in his place. The entry further stated that Ding was appointed chief department head for special missions in hygiene, etc. The Ding diary is discussed elsewhere in this judgment. Considering the demonstrated desire of Ding for his personal aggrandizement, this entry is not entitled to entire credit, as written. It refers to Genzken as “Major General”—which rank he did not receive until a few weeks after 9 January 1943. The entry, however, has some probative value upon the question of Ding’s status during the year 1943. Genzken testified that he “approved” the establishment of Ding’s department for vaccine research. He also testified that his department furnished necessary funds from its budget for Ding’s investigations. From the evidence it appears that prior to 1 September 1943, Mrugowsky reported regularly to Genzken, on an average of once per week, either orally or in writing. Under date 5 May 1942, Mrugowsky signed a written report upon the subject, “Testing Typhus Vaccines.” This report went to six different offices: the first copy, to Conti; the second copy, to Grawitz; and the third copy, to Genzken. The report commences: “The tests of four typhus vaccines made by us on human subjects at the instigation of the Reich Health Leader Dr. Conti had the following results * * *”. It is stated that the mortality of victims of typhus during an epidemic “was around 30 percent” and that “during the same epidemic four groups of experimental subjects were vaccinated with one each” of the four types of vaccine described in the beginning of the report.