▁the ▁SS ▁man ▁who ▁designed ▁it . ▁Until ▁December ▁ 1 9 4 2 ▁at ▁least ▁ 3 5 0 , 0 0 0 ▁to ▁ 4 0 0 , 0 0 0 ▁Jews ▁were ▁murder ed ▁in ▁the ▁new ▁gas ▁ch amb ers . ▁One ▁We hr macht ▁ser ge ant ▁at ▁the ▁train ▁station ▁in ▁R zes z ow , ▁Wilhelm ▁Corn ides , ▁recorded ▁in ▁his ▁di ary ▁a ▁conversation ▁with ▁a ▁German ▁polic eman ▁on ▁ 3 0 ▁August ▁ 1 9 4 2 . ▁The ▁Bahn schutz pol ize i ▁told ▁him : ▁" tra ins ▁filled ▁with ▁Jews ▁pass ▁almost ▁daily ▁through ▁the ▁railway ▁yards ▁and ▁leave ▁immediately ▁on ▁the ▁way ▁to ▁the ▁camp . ▁They ▁return ▁swe pt ▁clean ▁most ▁often ▁the ▁same ▁evening ." ▁The ▁last ▁transport ▁of ▁Jews ▁arrived ▁at ▁Be ł ż ec ▁on ▁ 1 1 ▁December ▁ 1 9 4 2 . ▁The ▁buried ▁remains ▁often ▁sw elled ▁in ▁the ▁heat ▁as ▁a ▁result ▁of ▁put ref action ▁and ▁the ▁escape ▁of ▁g ases . ▁The ▁surface ▁layer ▁of ▁soil ▁split . ▁In ▁October ▁ 1 9 4 2 ▁the ▁ex hum ation ▁and ▁burning ▁of ▁all ▁corps es ▁was ▁ordered ▁to ▁cover ▁up ▁the ▁crime ▁on ▁direct ▁orders ▁from ▁SS - O berg ru ppen führ er ▁Od ilo ▁G lob oc nik , ▁the ▁deput y ▁of ▁Reich sf ühr er - SS ▁Heinrich ▁Him ml er ▁in ▁Berlin . ▁The ▁bodies ▁were ▁placed ▁on ▁py res ▁made ▁from