Correspondence on book reviews and articles written by Simon Section made up of four groupings: Correspondence relating to reviews of 'Lehrbuch der Physik' by Mueller and Pouillet in 'Zeitschrift fur physikalische Chemie', 1933 General correspondence on Simon's writing of book reviews, editorials and contributions to other books Correspondence on 'Progress in Low Temperature Physics II' and correspondence with McGraw-Hill on publishing a series of monographs, to be edited by Simon Correspondence on articles requested for the scientific or technical press, including 'Nature', 'Discovery' and 'Research' 1933-1956