From the exhibits in the record, it appears that Rose and Haagen corresponded during the month of June 1943 concerning the production of a vaccine for typhus. Under date 5 June 1943 Haagen wrote to Rose amplifying a telephone conversation between the two and referring to a letter from a certain Giroud with reference to a vaccine which had been used on rabbits. A few days later Rose replied, thanking him for his letters of 4 and 5 June and for “the prompt execution of my request.” The record makes it plain that by use of the phrase “the prompt execution of my request” was meant a request made by Rose to the Chief of the Medical Service of the Wehrmacht for an order to produce typhus vaccine to be used by the armed forces in the eastern area. Under date 4 October 1943 Haagen again wrote Rose concerning his plans for vaccine production, making reference in the letter to a report made by Rose on the Ipsen vaccine. Haagen stated that he had already reported to Rose on the results of experiments with human beings and expressed his regret that, up to the date of the letter, he had been unable to “perform infection experiments on the vaccinated persons.” He also stated that he had requested the Ahnenerbe to provide suitable persons for vaccination but had received no answer; that he was then vaccinating other human beings and would report results later. He concluded by expressing the wish and need for experimental subjects upon whom to test vaccinations, and suggested that when subjects were procured, parallel tests should be made between the vaccine referred to in the letter and the Ipsen tests. We think the only reasonable inference which can be drawn from this letter is that Haagen was proposing to test the efficacy of the vaccinations which he had completed, which could only be accomplished by infecting the vaccinated subjects with a virulent pathogenic virus. In a letter written by Rose and dated “in the field, 29 September 1943”, directed to the Behring Works at Marburg/Lahn, Rose states that he is enclosing a memorandum regarding reports by Dr. Ipsen on his experience in the production of typhus vaccine. Copy of the report which Rose enclosed is in evidence, Rose stating therein that he had proposed, and Ipsen had promised, that a number of Ipsen’s liver vaccine samples should be sent to Rose with the object of testing its protective efficacy on human beings whose lives were in special danger. Copies of this report were forwarded by Rose to several institutions, including that presided over by Haagen. In November 1943, 100 prisoners were transported to Natzweiler, of whom 18 had died during the journey. The remainder were in such poor health that Haagen found them worthless for his experiments and requested additional healthy prisoners through Dr. Hirt, who was a member of the Ahnenerbe.