Series 02. Chronological Correspondence, 1921-1941

This early correspondence, which is primarily personal and professional in nature rather than technical, was put into chronological order for the Archives for History of Quantum Physics project (AHQP). Most of the 1921-1933 correspondence was microfilmed in 1963 (AHQP reels 60-65). The other correspondence in this series was also later microfilmed. Each microfilm reel contains an itemized chronological listing of correspondents. In addition, copies of Thomas Kuhn's cards listing the AHQP correspondence and a printout of the listing for the 1933-1941 correspondence can be found in the processing notes. There is also a list of pre-1933 correspondence on microfilm in this collection (see Series XVI). Researchers should also reference the correspondence between Goudsmit and Henry L. Woudhuysen in Series XVII (box 75).