IN THIS ISSUE: Pioneering in Plasma Studies is the second of a two-part series on Cornell research in plasmas. The Autumn 1987 issue featured articles by seven members of the faculty. This Winter 1987-88 issue comprises a report on the symposium that was held in celebration of the twentieth anniversary of the Laboratory of Plasma Studies, and four more articles by Cornell professors. --- The Laboratory of Plasma Studies: Coming of Age /2 ... Black-Hole Pumps /5 Richard V. E. Lovelace ... Intense Relativistic Electrons: Their Interactions with Matter and with Waves /9 Charles B. Wharton ... Compact-Tor old Fusion and High-Energy Particle Rings /15 Hans H. Fleischmann ... Inertial Confinement Fusion and Cornell's Part in its Development /21 Bruce R. Kusse ... Register /25 ... Faculty Publications /28