Neff’s testimony is corroborated in large part by the affidavits of the defendants Rudolf Brandt and Becker-Freyseng, by the testimony of the witnesses Lutz, Michalowsky and Vieweg, and by the documentary evidence in the record. In the Sievers’ diary, there are numerous instances of Sievers’ activities in the aid of Rascher. On 1 February 1943 Sievers noted efforts in obtaining apparatus, implements and chemicals for Rascher’s experiments. On 6 and 21 January 1944 Sievers noted the problem of location. Rascher reported to Sievers periodically concerning the status and details of the freezing experiments. It is plain from the record that the relationship of Sievers and Rascher in the performance of freezing experiments required Sievers to make the preliminary arrangements for the performance of the experiments to familiarize himself with the progress of the experiments by personal inspection, to furnish necessary equipment and material, including human beings used during the freezing experiments, to receive and make progress reports concerning Rascher, and to handle the matter of evaluation and publication of such reports. Basically, such activities constituted a performance of his duties as defined by Sievers in his letter of 28 January 1943 to Rudolf Brandt, in which he stated that he smoothed the way for research workers and saw to it that Himmler’s orders were carried out. Under these facts Sievers is chargeable with the criminal activities in these experiments. MALARIA EXPERIMENTS Details of these experiments are given elsewhere in this judgment. These experiments were performed at Dachau by Schilling and Ploetner. The evidence shows that Sievers had knowledge of the nature and purpose of these criminal enterprises and supported them in his official position. LOST GAS EXPERIMENTS These experiments were conducted in the Natzweiler concentration camp under the supervision of Professor Hirt of the University of Strasbourg. The Ahnenerbe Society and the defendant Sievers supported this research on behalf of the SS. The arrangement for the payment of the research subsidies of the Ahnenerbe was made by Sievers. The defendant Sievers participated in these experiments by actively collaborating with the defendants Karl Brandt and Rudolf Brandt and with Hirt and his principal assistant, Dr. Wimmer. The record shows that Sievers was in correspondence with Hirt at least as early as January 1942, and that he established contact between Himmler and Hirt. In a letter of 11 September 1942 to Gluecks, Sievers wrote that the necessary conditions existed in Natzweiler “for carrying out our military scientific research work”. He requested that Gluecks issue the necessary authorization for Hirt, Wimmer, and Kieselbach to enter Natzweiler, and that provision be made for their board and accommodations. The letter also stated: