These letters relate to:
Public Finance by Hicks, U.K.
Space Time and Gravitation by Eddington, A.
Cambridge Readings in the Literature of Science edited by Whetham, W.C.D.
Beyond the Electron by Thomson, J.J.
Religion in the Making by Whitehead, A.N.
Adventures of Ideas by Whitehead, A.N.
Leslie Stephen Lecture on Chaucer by Masefield, J.
Colonies by Walker, E.A.
The British Overseas by Carrington, C.E.
Mendel’s Principles of Heredity by Bateson, W.
Chemotherapy: Yesterday, Today and Tomorrow by Fleming, A.