- FondsHoyle - Papers of Sir Fred Hoyle
- SeriesBox 40 - Box 40
- File2 - Erratics
- Item1 - Elizabeth J. Butler and FH, Erratic boulders, ice-ages, and other matters
- Item2 - Elizabeth J. Butler and FH, Erratic boulders, ice-ages, and other matters
- Item3 - Typescript letter, signed, from Stuart Sharrock (Physical Sciences Editor, Nature) to Elizabeth Butler
- Item4 - Referee's comments on Elizabeth J. Butler and FH, 'Erratic boulders, ice-ages, and other matters'
- Item5 - L.F. Penny, 'A review of the last glaciation in Great Britain', Proceedings of the Yorkshire Geographical Society 34 (1964), pp. 387-411.
- Item6 - J.D. Forbes, 'Notes on the topography and geology of the Cuchullin Hills in Skye, and on the traces of Ancient Glaciers which they present', Edinburgh new philosophical journal 40 (1984), pp. 76-99
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