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The third limitation was , of course , the price the SS asked for its deliveries . Restrictions on the freedom of the individual , the right to free speech , including freedom of the press and the right of assembly and the right to form groups , infringements on the secrecy of post , telegraph and telephone communications , house searches , confiscation and limitation in property ownership over and above the previously legally specified limitations are now permissible . For instance , it must have an identity ; be able to adapt to a changing environment ; be capable of healing itself ; and have an immune system . In addition to suffering from the horrible conditions including the lack of food and adequate sanitary facilities , the Jews , especially those perceived as well-off , were subjected to barbaric treatment by police and gendarmes searching for ' hidden wealth ' " The German Social Security Authorities have refused me a pension for work in Budapest gettho on ground of the following : I escaped the Ghetto November 1944 , whereas the ghetto was established only this month . Everybody was issued identity cards . Rudolf 's claim that a measurement of the pH many years later may not be indicative of the pH at the time is valid . On the other hand a high pH makes the formation of a necessary precursor to Prussian blue less likely . Notwithstanding that fact , our conclusions about Prussian blue formation simply do not hinge on the pH . Rudolf claims that the pH is basic because of plaster walls in the gas chambers . Blue from iron oxides from the construction materials and the developing cyanide in the walls on the occasion of HCN gassing , as I proposed , he considers it as unlikely , mainly because he considers the walls observed to be a pH neutral environment .