By A. D. Mills
By Mallard Press
By Salvatore Lombardo
By B.M. Willett
By N/A
By A. Viruly
By Robert S. Dadson, Great Britain: National Physical Laboratory, Sylvia L. Lewis
By Hessayon, Dr D G
By Austin, Oliver L.
By The German Space Centre
By William J. Cromie, William H. Amos
By Wilson, John Graham
By J. J. Branigan
By R. Kay Gresswell
By Arthur Holmes
By N K Horrocks
By F. J. Monkhouse
By Donald A. Hall
By David Brunt
By O. G. Sutton
By Ian Statham, Brian Finlayson
By K. Briggs
By D C Money
By F. S. Hudson
By George Pendle
By Clarence Fielden Jones
By F.J Monhouse and H.R Wilkinson
By John Bygott