Anthony Lewis described his recent visit to the Panovs Leningrad apartment. In a sensitive and perceptive article appropriately entitled "The Dark Side". Lewis concluded with the observation that: As long as such exemplary cruelty remains a part of the system. it will not be possible for Americans to forget Valery Panov. Panov is not the only prominent Russian personality in the arts of sciences now living on the "dark side." Thousands of others are being cruelly persecuted because of an expressed desire to leave Russia. Among the more than 100.000 outstanding applications for exit visas there are such noted figures as Academician Benjamin Levich. Professor Alexei Lerner. Dr.