- FondsJeffreys - Papers and correspondence of Sir Harold Jeffreys
- SeriesB1-B316 - Research
- SubseriesB263-B290 - Miscellaneous
- FileB263 - 'Found in E.R. Lapwood & T. Usami "Free oscillations of the earth", CUP 1981'
- FileB264 - 'H.J.'s Notes on Lamb's Hydrodynamics'
- FileB265-B266 - 'C.G. Darwin'
- FileB267-B273 - Seismological investigations
- FileB274-B284 - 'Collections of rough working'
- FileB285-B290 - Manuscript notes, annotated papers, etc.