- FondsJeffreysB - Papers of Bertha Jeffreys
- SeriesH - History of science and other interests
- SubseriesH1-H108 - History of Science
- FileH83-H85 - Lewis Fry Richardson (1881-1953)
- ItemH83 - Correspondence bewtween Sir Harold Jeffreys and Platzman
- ItemH84 - Correspondence
- ItemH85 - Offprints by Platzman