operations", i. e. for the extermination of those who managed to dodge the main round-up and, of those younger Jews who were employed in war industry. To indulge in their lust for destruction the Germans did not hesitate to put to death even those younger Jews although their man-power was badly needed and their loss - as admitted by the Germans themselves - was a serious handicap for the war effort. The Camp B of Treblinka is situated in hilly, wooded country It covered an area of about 5.000 ha (18 sq. miles) and was fenced off by hedges and barbed wire. It is bordered in the north by a young forest, in the west by a railway embankment while low hills shut it off from the East and South. There are several obser­vation posts in the camp for the camp guard (Lagerschutz) as well as searchlights used for securing the camp during the hours of darkness. A side track leads from the main railway track on to a loading platform adjoining a large open place fenced off by barbed wire. where several thousands persons can be accom­modated at the same time. To the north stands a large barrack and in the south-western corner an observation post. The place to the south of the barbed wire fence was used for sorting out pieces of clothes of the victims which were fit for further use (Lumpen­sortierungsplatz). Further to the south is the place of execution and a mass grave. A gate opens from the place to a road leading to the buildings and one of them is divided by a narrow corridor into two parts and measures approx. 40 yards by 25 yards. On each side of the corridor are situated five chambers whose height is about 6 and a half feet. There are no windows. The doors can be shut hermetically. The second building consists of three chambers and a boiler­room. The steam generated in the boilers is led by means of pipes to the chambers. There are terracota floors which become very slippery when wet. Along the southern wall of the building runs a long platform where the bodies of the victims were piled up after execution. A well is situated near the boiler-room. Behind this building and separated from the rest of the camp by barbed wire stands a barrack and a kitchen destined for the grave diggers. On both sides of these buildings are situated observation posts. As the executions grew in numbers, mass graves were dug out by motor driven machines and not by hand and shovel as in the beginning. The camp was guarded by Germans of the SS-detachments and by Ukrainians. The officer to whom this guard was subordinated was the SS-Capt. SAUER. This garrison (Lagerschutz) performed also duties of executioners, while menial services had to be performed