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          AUSCHWITZ: 
                                     Technique 
            and Operation 
                                         of 
            the Gas Chambers ©  |    |  
  
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          | On the morning of 29th January, two days before the planned date 
            for bringing Krematorium II into service (31st), Bischoff, 
            Kirschneck and Prüfer, probably accompanied by other Bauleitung SS 
            and representatives of all the civilian firms working on the 
            Krematorien, went to Birkenau and thoroughly inspected worksites 30, 
            30a, 30b and 30c. In the afternoon, Kirschneck drew up a detailed 
            report of the inspection [Documents 24 and 24a]. As soon as 
            he had finished. Prüfer read it and coolly rewrote it, simplifying 
            the text to “erase” some of the obvious delays. Prüfer entitled the 
            shortened text “Prübericht / Inspection report” and gavel it to 
            Bischoff [Documents 23 and 23a]. Then Bischoff, in response 
            to a request made the previous day by the SS WVHA in Berlin for a 
            progress report, sent the Prüfer report off to his chief, Kammler, 
            informing him that Krematorium II was completed [Document 22] 
            and claiming it was operational, which was far from the case. He 
            wrote that he expected the building to be ready for official 
            handover on 20th February, whereas the actual date was 31st March. 
            This “victory communiqué” brought Bischoff immediate promotion: he 
            was made a Major the next day, 30th January. Bischoff had very 
            cleverly maneuvered his superior, and the delays that inevitably 
            appeared were attributed to Prüfer and hence to Messrs Topf, which 
            was only fair. However, in his letter Bischoff made an enormous 
            gaff, explaining to Kammler that though it had unfortunately not 
            been possible to remove the formwork from the ceiling of 
            Leichenkeller 2, because of the Silesian cold, this was of little 
            importance, because the “Vergasungskeller” could be used in 
            its stead [as a normal morgue]. There was the fateful word, 
            “gassing cellar”, written by Bischoff himself and designating 
            Leichenkeller 1, as can be seen after cross-checking with 
            Kirschneck’s report and Prüfer’s simplified “inspection report”. 
            This is the first of the “slips” that SS and civilians could not 
            help making, involuntarily or otherwise, as the criminal conversion 
            of the Krematorien progressed, since in the course of their work 
            they had to give precise designations to the homicidal 
            installations. The afternoon of 29th January 1943 was extremely 
            busy, because in addition, Bischoff and Prüfer considered the 
            possibility of constructing a SIXTH INCINERATION INSTALLATION, 
            KREMATORIUM VI based on the principal of open air incineration 
            ditches and the experience gained with them in the Birkenau woods 
            between 20th September and 30th November 1942. Prüfer was to produce 
            the drawings and Pollok was to follow progress for the Bauleitung 
            (Volume 11 of the Hoess trial, Annex 1, page 58]. Prüfer being a 
            fast worker, both in business and in designing furnaces, it is most 
            likely that on his return home from Auschwitz, and according to his 
            habit, he produced the plans for this project at home (2 Herman 
            Göringstraße, Bischleben) and during his free time (hence probably 
            on Sunday 31st January). The drawings of this envisaged new 
            cremation installation have not come down to us. It was designated 
            as an “offene Verbrennungskammer / open cremation chamber” or 
            “großer Ring Einäscherungsanlage / Big ring incineration furnace”. 
            Pollok reported that its dimensions were “48.75 by 3.76 meters”. 
            Bearing in mind that that this “furnace pit” was most probably 
            circular, these dimensions could apply to the overall installation 
            or to the diameter and depth of the pit. In the latter case, the 
            surface area of the “furnace” would be 1,865 m² and the cubic 
            capacity approximately 7,000 m², which is absolutely gigantic and 
            technically quite utopian. In order to remain exploitable within the 
            limits of human strength, the diameter would have to be no more than 
            about fifteen meters.   |  
        
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            [In the author’s opinion, the foundations and the 
              circular wall would have been poured in reinforced concrete, the 
              whole being protected by a thick layer of firebrick, On the bottom 
              there would have been short pillars of refractory material, about 
              one meter high, supporting a framework of refractory beams on 
              which the corpses would rest. Firing by coke or coal would be 
              effected through three (or more, depending on the diameter of the 
              pit) openings spaced equidistantly around the circumference, in 
              the form of trenches sloping from ground level to the floor of the 
              “furnace pit”. It is very possible that Prüfer would have 
              considered improving the efficiency of this internal site by 
              installing pulsed air blowers, which would have enabled him to 
              sell more of his own firm’s products. Operation would have been 
              cyclical: the hearth would be lit, corpses would be thrown on to 
              the grid of refractory material, then, when the space between this 
              and the floor of the pit had become choked with ash and clinker, 
              it would have been necessary to let it cool and clean it out 
              completely before beginning a new cycle. The advantages would have 
              been great incineration throughput for very little fuel 
              consumption. The disadvantages: a fire visible day and night for 
              kilometers around, terrible heat, the danger in case of sudden 
              gusts of wind, an unbearable smell and, above all, the work of 
              cleaning out and recharging the furnace pit, would be exhausting 
              if not mortally dangerous. The fact is that optimal operation 
              would require that the pit should not cool too much between 
              cycles, to enable the following cycle to start easily, which would 
              mean that the prisoners cleaning out the pit and preparing it for 
              the next firing would be forced to work in a very hot furnace. 
              Even though this project never came to anything, its principle was 
              not forgotten, and was put into practice in a primitive way in the 
              open-air incineration ditches dug near Krematorium V and Bunker 
              2/V. In the author’s opinion, the future Krematorium VI would most 
              probably have been installed in the birch wood, 300 meters north 
              of Krematorium V. The reader may be interested to know that for a 
              long time one of the Birkenau guides used to tell visitors that 
              Krematorium VI was planned to be electric. The victims 
              would have stepped on a conveyor belt and been taken into the 
              Krematorium where they would have been electrocuted and 
              incinerated in a continuous production line operation. The 
              location was to be in B.III, which was an error of only 200 to 300 
              meters, since Krematorium VI would probably have been to the west 
              of B.III, in the woods. This poor guide was in fact only repeating 
              what had been written by a Soviet journalist, Boris Polevoi, in 
              “Pravda” on 2nd February 1945. Legends die hard.] 
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           On Monday 1st February, a team of bricklayers, civilians and 
            prisoners, working for Messrs Robert Koehler, completed the 
            three-flue collective chimney of Krematorium III [Documents 26 
            and 26a]. 
  On Tuesday 2nd February, the newly promoted SS 
            Major Bischoff sent the Prüfer report to Hoess, to inform him of 
            progress on the four Krematorien [Document 25]. This letter 
            shows that Hoess did not participate in the visit to the worksites 
            on the morning of Friday 29th. 
  On 3rd February, Kirschneck 
            sent a telegram to Topf, listing their fitter, Messing's, 
            requirements for the air extraction systems for the whole of 
            Krematorium II. At 4:15 pm, Topf senior engineer Schulz telephoned 
            from Erfurt, saying that the requested material would be despatched 
            without fail on Saturday 6th February.  
  On 5th 
            February, Prüfer wrote to the Bauleitung regarding Messing’s 
            request, saying that he was having the blowers and ducting taken 
            from a consignment intended for another camp and confirming that 
            they would be on a wagon that should arrive at Auschwitz on 6th 
            February. Asking the Bauleitung to excuse this delay, he announced 
            that two other foremen were shortly to arrive at Auschwitz, Holick 
            (already on his way) and Seyffarth, and that a specialist fitter 
            would later be arriving to help Messing to install the ventilation 
            and air-extraction systems. On the subject of the “large circular 
            incineration furnace”, for the supply of which the Bauleitung had 
            [already!] received an estimate, Prüfer gave them until 9th February 
            to confirm the order, so that he could immediately start on the 
            manufacture of the metal parts. Krematorium VI was never built for 
            the simple reason that KL Auschwitz had no need for it. With five 
            Krematorien and a total of 52 incineration muffles, the cremation 
            capacity was more than adequate with respect to its real needs, to 
            the extent that in July 1943, just after the official handover of 
            Krematorium III (the last to be completed), the three two-muffle 
            furnaces (6 muffles) of Krematorium I were taken out of service. The 
            same day, Huta sent to Herr Stephan, their foreman at Krematorien II 
            and III, a letter concerning the complaints made by the Bauleitung 
            on 27th January. Hula exonerated him with respect to the non-use of 
            frost protection agents during the is pouring of the concrete roof 
            of Leichenkeller 2, a practice the firm was against in all 
            circumstances, but asked him to give his reasons for forgetting to 
            dig the pit for the corpse lift of Krematorium III sufficiently 
            deeply, while its dimensions were perfectly indicated on Bauleitung 
            drawings 1173-1174 and 1301 and that of Krematorium II had already 
            been correctly completed. 
  On 8th February, Messing, who had 
            still not received the ventilation material required for Krematorium 
            II, stopped work there, and in order not to waste time, fitted the 
            anchors for the 8-muffle furnace of Krematorium IV, probably being 
            engaged on this until and including 10th February. 
  On 10th 
            February, work began on piercing the opening for and building the 
            western access stairway to Leichenkeller 2 (future undressing 
            room) of Krematorium III, under the supervision of Huta 
            foreman Kolbe. This was done in six days, being completed on 15th 
            [PMO file BW 30/38, pages 25 to 27]. It is not known when 
            this operation was carried out for Krematorium II. The only mention 
            of its realization dates from 26th February, or eleven days AFTER 
            that of Krematorium III was completed. This paradox cannot be 
            explained without further documents. The same day, the Bauleitung 
            telegraphed Topf to again confirm the orders for the “mechanical” 
            installations (five 3-muffle furnaces and the ventilation systems) 
            for Krematorium III and two corpse lifts (one for II and the other 
            for III), as well as a provisional mechanical good shoist (for 
            Krematorium II), all this material being for immediate procurement 
            or manufacture and to be delivered as soon as possible in order for 
            Krematorium III to be ready for service on 10th April [Document 
            27]. 
  On 11th February, the Bauleitung finally received, 
            apparently five days late, the wagonload of material promised by the 
            Topf engineers Schulze and Prüfer. On checking its contents, Messing 
            found that the blower for Leichenkeller I and the air extractor fan 
            motor for Leichenkeller 2, both for Kr II, were still missing. This 
            time, things had gone too far, and it was Jährling, a civilian 
            Bauleitung employee, who asked Topf to explain themselves. He 
            recalled that on 21st January Topf had announced that ALL the 
            ventilation and air extraction equipment (for Krematorium II) would 
            be despatched on 22nd, whereas when this first wagon arrived there 
            were so many parts missing that Messing was unable so continue his 
            work. In response to a telephone enquiry, Prüfer had maintained that 
            the material had in fact been sent. As nothing further arrived, the 
            Bauleitung had, at Messing’s request, sent a telegram to which 
            Schulze had immediately replied by telephone, saying that the parts 
            had not yet been manufactured but would be sent on 6th 
            February. Prüfer had confirmed in writing on 5th February that the 
            material should in fact be delivered the following day, adding that 
            it had been taken from another consignment! On 10th February, 
            the Bauleitung, still having received nothing, had cabled to Topf 
            the confirmation of orders for equipment for Krematorium III. The 
            arrival of the second wagon on 11th February with the material still 
            incomplete had caused another telegram to be sent, and also a letter 
            concerned essentially with the lack of the blower and its motor for 
            Leichenkeller 1 (the future gas chamber), “for which the need is 
            most urgent”. However, Messing recommenced work on installing 
            the ventilation systems of Kr II and continued uninterrupted until 
            13th March. The Bauleitung SS, having triumphally announced to their 
            superior in Berlin, Kammler, that Krematorium II was completed, were 
            very annoyed that it should still not be operational for lack of the 
            ventilation essential for its operation. The fault lay with Messrs 
            Topf, and in particular with Prüfer, who promised instant miracles 
            to the Bauleitung, whereas in fact things dragged on and material 
            failed to arrive, However, Prüfer’s failure to keep his word was 
            very largely due to the incompatibility between his genuine desire 
            to rapidly manufacture and sell his firm’s products and the ever 
            increasing shortages of all sorts of goods and materials in Germany, 
            which frequently slowed or halted production. Still on 11th 
            February, the Bauleitung had Jährling send Topf the order for the 
            delivery and installation of the waste incinerator for Krematorium 
            III (this matter being not yet settled), for a price of 5,791 Reichs 
            marks according to the Topf quote of 5th February. 
  On 12th 
            February, Messrs Topf sent a first letter [Document 27] 
            acknowledging receipt of the telegram of 10th concerning Krematorium 
            III and the corpse lifts, then, in a second letter repeating the 
            text of the telegram of 10th, it attached that of 11th concerning 
            the fans and motors for Leichenkeller 1 and 2 of Krematorium II 
            [Part II, Chapter 6]. It announced that Prüfer would arrive al 
            Auschwitz in the afternoon of 15th February, and the despatch of a 
            replacement motor for Leichenkeller 2. The same day, the 
            consignment note for the shipment of the missing parts was 
            drawn up, and the Bauleitung received on 14th February. Through the 
            intermediary of Pollok, Bischoff informed Kammler at the SS WVHA in 
            Berlin of the difficulties encountered with Topf, thus putting the 
            blame for the delay in the coming into service of Krematorium II 
            onto this firm. In addition, still through Pollok, Bischoff informed 
            Camp Commandant Hoess of the project for Krematorium VI, stemming 
            from the experience gained with open air incineration ditches. The 
            Bauleitung envisaged a work force of 350 prisoners for its 
            construction, almost as many as were employed on the construction of 
            the four new Krematorien. This project was, of course, never 
            implemented because the additional cremation capacity was not 
            required. 
  On 17th February, the Bauleitung Drawing Office 
            produced a general plan of the Birkenau POW camp, drawing 1991, 
            showing the three construction stages in their final form (total 
            capacity of approximately 100,000 prisoners) and equipped, for 
            the first time on any 
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    AUSCHWITZ:  Technique 
      and operation  of the gas chambers Jean-Claude Pressac © 1989, The 
      Beate Klarsfeld Foundation |  
  
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