The following proceeding shows the special care which was taken in the carrying out of these experiments: It was agreed with the experimental persons that in case of earache they were to point with the hand to the ear. When one of the experimental subjects did this, Dr. Romberg immediately altered the pressure conditions, and the behavior of the experimental subject showed that he had no more discomfort. (_German Tr. pp. 5743 and 6845._) Since the question of the voluntary status of the human experimental subjects may be of significance in the case of all experiments, a comprehensive presentation of the most important depositions on this subject is given here. Himmler stated at the Easter conference in 1942, in answer to the scruples of Sievers, that only volunteers were to be allowed to be drawn upon for the experiments, and if the experiments were fraught with danger to life then only major criminals under sentence of death and no political prisoners would be taken. (_German Tr. p. 5677._) The witness Neff testified that volunteers presented themselves for the experiments. (_German Tr. p. 614._) Dr. Craemer of the Mountain Institute for Psychology of the Army Mountain Medical School [Gebirgspsychologisches, Institut der Heeres-Gebirgs-Sanitaets-Schule] has, in an affidavit, reported a conversation with Dr. Rascher in the course of which the latter said: “Human experimental subjects. It is a question of major criminals under valid sentence of death who come forward voluntarily for the experiments in Dachau in order to have life and liberty given to them if they survive an experiment.” (_Handloser 37, Handloser Ex. 18._) The witness Meine declared: “* * * since, furthermore, I knew from the series of experiments in Oranienburg that the prisoners had come forward voluntarily in crowds * * * my suspicion was not aroused during these years.” (_German Tr. p. 4864._) Dr. Mrugowsky deposed the following in his direct examination regarding yellow-fever experiments: “Only volunteers were used, and Dr. Ding states in his declaration (_NO-257, Pros. Ex. 283_) that he knew of a list, and that for these kinds of cases always hundreds of volunteers offered themselves because they would not need to work for 4 weeks and were better fed.” (_German Tr. p. 5195._) Further, I refer to the affidavit of Dr. Morgen, which was submitted by Dr. Mrugowsky’s defense counsel, Mrugowsky 32 (_Mrugowsky Exhibit 26_): “At the conference with Dr. Ding I learned that the human experimental subjects came forward voluntarily for these experiments. * * * In the case of the prisoner whose treatment I chanced to watch with others, I had the definite impression that he was a volunteer.” (_German Tr. p. 5228._) In connection with the high-altitude experiments in Dachau, I quote the following from Dr. Ruff’s deposition: