The Walls of Auschwitz
Three main chemical investigations have been performed concerning residual cyanide in the walls of alleged ‘gas chambers’ at Auschwitz: by Leuchter, Rudolf and by Markiewicz. Over the two decades since Leuchter first sampled, debates have raged concerning where the samples were taken from, whether it was really ‘historic’ brickwork, how porous the brickwork was to…