On Monday 18 January, CERN received the Head of the Permanent Delegation of the U.S.S.R. to the United Nations Organization in Geneva, Mr. N. Moliakov, together with Mr. E . Pavlov, second Secretary, and Mr. G. A. Smirnov. One of their guides was Dr. V. Kaftanov, from the Institute of Theoretical and Experimental Physics in Moscow.