- FondsJeffreysB - Papers of Bertha Jeffreys
- SeriesC - Research
- SubseriesC5-C60 - Research folders
- FileC28-C34 - 'Helium triplets 1936'
- 1 more...
- ItemC29 - Correspondence to Jeffreys
- ItemC30 - Manuscript draft beginning, 'The method of the s.c.f. has proved extremely fruitful in giving accurately the position of spectral terms [...]'
- ItemC31 - Sets of manuscript calculations numbered I-VI
- ItemC32-C33 - Manuscript calculations
- ItemC34 - Offprints by Gentaro Araki