- FondsJeffreysB - Papers of Bertha Jeffreys
- SeriesE - Lectures
- SubseriesE54-E91 - Public and invitation lectures
- FileE72-E77 - 'Noether's theorem. Lecture to New Pythagoreans. Notes on Besselhagen, Bromwich, Cunningham, Larmor'
- ItemE72 - Manuscript and typescript notes headed 'Paper read to New Pythogoreans. 1975?'
- ItemE73 - 'Noether's theorem'
- ItemE74 - 'Emmy Noether and the Calculus of Variations', Letter by Jeffreys to the Bulletin of the Institute of Mathematics and its Applications, November/December 1974
- ItemE75 - Background information on Noether.
- ItemE76-E77 - Background information on E. Cunningham, E. Bessel-Hagen, etc.