Contains: A copy of Auerbach's PhD thesis, with handwritten corrections; Charlotte Auerbach's degree and honorary degree certificates, as well certificates relating various medals and prizes; correspondence with various societies and organisations; biographical papers relating to Auerbach collected by Geoffrey Beale in preparation of his biographical memoir of Auerbach for the Royal Society. These papers include copies of some of Auerbach's published books, cassette tapes of interviews between Beale and Auerbach and original papers of Auerbach's dating from the 1940s; notebooks and a microscope belonging to Auerbach.