Testimony of Yisrael Dorn, born in Bydgoszcz, Poland, regarding his experiences in Warsaw and Bialystok Taken captive by the Germans, 1939; forced labor; transfer to Warsaw; transfer to Bialystok, 1941; life in Bialystok including forced labor outside the ghetto; "Aktion", 05 February 1943; "Aktion", 15 August 1943; prison life including hunger and morbidity; transfer from the prison to labor outside the ghetto; hiding of children in hiding places in the ghetto; "Aktion" directed against children, August 1943; murder of the children; escape from the prison; liberation by the Red Army, 27 July 1944.