- FondsHoyle - Papers of Sir Fred Hoyle
- SeriesBox 75 - Box 75
- File2 - [Folder 2]
- Item1 - Correspondence with The Conservation Society
- Item2 - Autograph letter, signed, from Jack Soper (Editor, Fell and Rock Climbing Club Journal) to FH
- Item3 - Carbon copy of typescript letter, not signed, from FH to N.J. Soper (Editor, Fell and Rock Climbing Club Journal)
- Item4 - Carbon copy of typescript letter, not signed, from Abdus Salam (Internationl Centre for Theoretical Physics, Trieste) to Eric Ashby (Vice-Chancellor, University of Cambridge)
- Item5 - Autograph letter, signed, from Cyril [Hazard] to FH
- Item6 - Typescript letter, signed, from A.H. Cottrell (Cabinet Office) to FH
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