- FondsHoyle - Papers of Sir Fred Hoyle
- SeriesBox 55 - Box 55
- File11 - [Folder 11]
- Item1 - Halton Arp, 'A connection between the spiral galaxy NGC 4319 and the quasi-stellar object Makarian 205'
- Item2 - Typescript letter, signed, from David L. Crawford (Kitt Peak National Observatory) to FH
- Item3 - [Various astronomical photographs including galaxies, nebulae, the sun, and observatories]
- Item4 - [Diagram of the interactions of particles at a given Schwarzschild radius]
- Item5 - Period-amplitude relation