HC Deb 20 April 1967 vol 745 cc148-9W
Mr. Marten

asked the Secretary of State for Foreign Affairs what progress is being made towards a tripartite conference of seismologists about underground nuclear tests.

Mr. Mulley

As my right hon. Friend the Foreign Secretary told the House on 19th December last, while in Moscow he pressed Mr. Gromyko to agree to this conference, unfortunately without success. We raised the matter again during Mr. Kosygin's recent visit. We shall keep trying.—[Vol. 738, c. 996.]