It is also interesting that Rascher still mentions the partial assistance of Dr. Romberg in his first report (of 5 April 1942) (_1971-A-PS, Pros. Ex. 49_) but does not say anything more in the final second report (of 11 May 1942), (_NO-220, Pros. Ex. 61_) where he described the affair as though he alone had carried, out the experiments. Compare page 81, line 21: “Experiments carried out by myself”; or page 79, lines 15-16: “_My_ heart experiments * * * that a very big sphere of work opened up for _me_,” etc. By that Rascher has clearly expressed that he did not have any assistance from Dr. Romberg in the experiments he thought particularly valuable, when he explains as particularly valuable his heart experiments and his observations concerning air embolism. Those were all experiments in which Ruff and Romberg had not the least interest, in which they never participated, and for which they would never have risked the health and the life of an experimental subject. Even specialists like Dr. Ruff and Dr. Romberg could never understand the scientific or other aim which Rascher had in mind in the case of those arbitrary experiments with fatal endings. Even the layman can easily recognize the basic difference between the two categories of experiments. The legal experiments which had been authorized by Dr. Ruff were always restricted to a very short period of a few moments; but the fatal experiments of Dr. Rascher were, as he emphasized himself, continuous experiments without oxygen, therefore experiments lasting over 30 minutes. It is easily understandable that experiments of such a length without the administration of oxygen may be fatal. To prove this it would not have been necessary to sacrifice even one single human life in these experiments. Serious research workers like Dr. Ruff and Dr. Romberg had therefore never carried out and never authorized such experiments. That was also well known to Rascher, and this explains the fact as stated by Neff (_German Tr. pp. 668, 670, 671_) that Rascher kept Dr. Romberg intentionally away from his arbitrary experiments; furthermore that he even carried out his experiments at night to keep them secret from Dr. Romberg, and that he also did not ask Romberg to sign his intermediary report of 5 April 1942, nor his summarizing secret report of 11 May 1942, which Romberg would surely have refused to do. * * * * *