Jun. 06, 1958 - ''BAN THE H-BOMB'' PARADE IN LONDON.. DELEGATION VISITS NO. 10. KEYSTONE PHOTO SHOWS:- L-R: CANON L. JOHN COLLINS, MR. MICHAEL FOST M.P. and the REV. DR. DONALD SOPER leaving No. 10. Downing Street yesterday after handing letters calling for the ban of the 'H' bomb - during the Campaign for Nuclear Disarmament in London yesterday.