[A]. Members of Editorial Sub-Committee
MINERAL SECTION
Principal Members of Staff
Superintendent
R. Allen, M.A. (Cantab.), B.Sc. (Lond.), M.Inst.M.M.
Assistant Superintendent
S. J. Johnstone, B.Sc. (Lond.), A.I.C.
Senior Assistants
G. M. Davies, M.Sc. (Lond.), F.G.S.
W. O. R. Wynn, A.I.C.