Harold
Jeffreys

Cambridge (MathTree)


Hermann
Bondi

Cambridge


Ralph H.
Fowler

Cambridge


Neville
Temperley

Swansea University


Ralph H.
Fowler

Cambridge




Dennis W.
Sciama

Cambridge


Adrian L.
Melott

University of Kansas (Astronomy Tree)

Brian Charles
Thomas

Washburn University
(Options)

Brian ThomasX