§ Q4. Mr. Zilliacusasked the Prime Minister whether he will discuss with President Kennedy the joint acceptance as a basis of negotiation of the British plan, put forward by Sir William Penney 140W and Sir Solly Zuckerman in Washington, for monitoring all nuclear test explosions through a chain of observation posts situated at suitably located points in Commonwealth and other territories outside the Union of Soviet Socialist Republics.
§ Mr. R. A. ButlerI have been asked to reply.
As my right hon. Friend the Lord Privy Seal made clear in his reply to the hon. Member on 18th April, no such plan was put forward.