- FondsJeffreys - Papers and correspondence of Sir Harold Jeffreys
- SeriesB1-B316 - Research
- SubseriesB215-B262 - Variation of Latitude
- FileB236-B241 - Correspondence, principally with Vincente
- ItemB236 - 1967-1969
- ItemB237 - 1976-1980
- ItemB238 - 1981-1982
- ItemB239 - 1983
- ItemB240 - 1983-1985
- ItemB241 - 1986-1988