- FondsJeffreys - Papers and correspondence of Sir Harold Jeffreys
- SeriesB1-B316 - Research
- SubseriesB86-B191 - Seismology
- SubseriesB86-B98 - Miscellaneous Papers
- FileB86-B89 - 'Lists of stations for earthquakes 1928, 1931, 1932'
- FileB90 - 'Tables for MNGS 4, p498, CP2 pp410-445, Times of P,S and SKS and Velocities of P and S.'
- FileB91 - 'Negatives for "Deep-focus Earthquakes" 1939, Ergebnisse d. Kosmische Physik 4, 75-105 (p.80, CP2 p.490)'
- FileB92 - 'Burton-on-Trent explosion 1944 Nov. 27'
- FileB93-4 - 'Working for Times of P in Japanese and European Earthquakes MNGS, 6, 557-65, 1954 CP 605'
- FileB95 - 'BASIC 1983'
- FileB96 - 'New Tables Kennett Hudson Bolt'
- ItemB97 - Letter from J.A. Hudson to Lady Jeffreys
- FileB98 - Correspondence