Summary
Participants in the trial: M. D. Read (Gloucester), R. F. Lamont (Harrow), J. J. Walker (Glasgow), M. J. A. Maresh (Manchester), D. W. Saxton (Aylesbury), A. Bond (Swindon), A. A. Calder (Edinburgh), N. G. Haddad (Chester). R. Freeman (Plymouth). A. Murray (Wirral), R. V. Clements (North Middlesex). P. Steer (West London). P. Stewart (Shefield), P. M. S. O'Brien (Stoke-On-Trent)