“One way to carry out these experiments in practice would be to have those people who are to be treated line up before a counter. There they would be questioned and a form would be given them to be filled out, the whole process taking 2 or 3 minutes. The official attendant who sits behind the counter can operate the apparatus in such a manner that he works a switch which will start both tubes together (as the rays have to come from both sides). With one such installation with two tubes about 150 to 200 persons could be sterilized daily, while 20 installations would take care of 3,000 to 4,000 persons daily. In my opinion the number of daily deportations will not exceed this figure.” In this same report the defendant Brack related that, and I quote (_NO-203_): “* * * the latest X-ray technique and research make it easily possible to carry out mass sterilization by means of X-rays. However, it appears to be impossible to take these measures without having those who were so treated finding out sooner or later that they definitely had been either sterilized or had been castrated by X-rays.” Another letter from Brack to Himmler, in June 1942, laid the basis for X-ray experiments which were subsequently carried out at Auschwitz. The second paragraph of this letter forms a fitting conclusion to this account of Nazi depravity, and I quote (_NO-205_): “Among 10 millions of Jews in Europe there are, I figure, at least 2 to 3 millions of men and women who are fit enough to work. Considering the extraordinary difficulties the labor problem presents us with, I hold the view that these 2 to 3 millions should be specially selected and preserved. This can, however, only be done if at the same time they are rendered incapable to propagate. About a year ago I reported to you that agents of mine have completed the experiments necessary for this purpose. I would like to recall these facts once more. Sterilization, as normally performed on persons with hereditary diseases, is here out of the question because it takes too long and is too expensive. Castration by X-rays, however, is not only relatively cheap but can also be performed on many thousands in the shortest time. I think that at this time it is already irrelevant whether the people in question become aware of having been castrated after some weeks or months, once they feel the effects.” J. Typhus (Fleckfieber) and Related Experiments