- FondsMacMahon - Papers of Percy Alexander MacMahon
- SeriesB - Papers belonging to Sir Charles Moore Watson
- File1 - Squaring the Circle
- 6 more...
- Item7 - Geometric solution
- Item8 - Circle and Sphere
- Item9 - Reports, Precis and Translations of the Royal Artillery Institution, March 1901
- Item10 - Geometric notes and solutions
- Item11 - Geometric diagram and problem
- Item12 - Solution to a theorem regarding the orthocentre of a triangle