On 26 July 1944, Sievers made a written report to Grawitz concerning details of his conference at Dachau. Sievers wrote that 40 experimental persons could be accommodated at “our” research station, that the Ahnenerbe would supply a laboratory, and that Dr. Ploetner would give his assistance, help, and advice to the Luftwaffe physicians performing the experiments. Sievers also stated the number and assignment of the personnel to be employed, estimating that the work would cover a period of three weeks and designated 23 July 1944 as the date of commencement, provided that experimental persons were available and the camp commander had received the necessary order from Himmler. In conclusion, Sievers expressed his hope that the arrangements which he had made would permit a successful conduct of the experiments and requested that acknowledgment be made to Himmler as a participant in the experiments. In his testimony Sievers admitted that he had written the above letter and had conferred with Beiglboeck at Dachau. As the letter indicates, Sievers knew that concentration camp inmates were to be used. Sievers had knowledge of and criminally participated in sea-water experiments. TYPHUS EXPERIMENTS Detailed description of these experiments is contained elsewhere in this judgment. Sievers participated in the criminal typhus experiments conducted by Haagen on concentration camp inmates at Natzweiler by making the necessary arrangements in connection with securing experimental subjects, handling administrative problems incident to the experiments, and by furnishing the Ahnenerbe station with its equipment in Natzweiler for their performance. On 16 August 1943, when Haagen was preparing to transfer his typhus experiments from Schirmeck to Natzweiler, he requested Sievers to make available a hundred concentration camp inmates for his research. This is seen from a letter of 30 September 1943 from Sievers to Haagen in which he states that he will be glad to assist, and that he is accordingly contacting the proper source to have the “desired personnel” placed at Haagen’s disposal. As a result of Sievers’ efforts, a hundred inmates were shipped from Auschwitz to Natzweiler for Haagen’s experiments. These were found to be unfit for experimentation because of their pitiful physical condition. A second group of one hundred was then made available. Some of these were used by Haagen as experimental subjects. That the experiments were carried out in the Ahnenerbe experimental station in Natzweiler is proved by excerpts from monthly reports of the camp doctor in Natzweiler. A number of deaths occurred among non-German experimental subjects as a direct result of the treatment to which they were subjected. POLYGAL EXPERIMENTS