By A.D. Imms, O.W. Richards, R.G. Davies
By Alan Martin, Samuel A. Harbison
By P.M. Harris
By C.T. INGOLD
By John Douglas
By Colin Campbell
By McClelland, B.J.
By R. Linggard, C. Nightingale, D.J. Myers
By C.A. Heaton
By R. Hamilton
By John A. Joule, G. F. Smith
By H. G. Jerrard
By Graham Kalton
By Derek F. Lawden
By D. W. Ballentyne
By D. W. G. Ballentyne, D. Lovett
By Margaret Ashwell
By The British Nutrition Foundation
By G. J. H. McCall, etc., D. Larning (Herrington Geoscience), S. Scott (Polytechnic South West)
By G. Barrie Wetherill
By M.A. Burgman, S. Ferson, H.R. Akcakaya
By R.G. Chambers
By ALAN MARTIN and SAMUEL A. HARBISON
By Philip Burnard, jo campling
By B. Sjogren
By E.R. Dobbs
By R. I. Damper
By Kathleen Maczka
By Paul Giller