IN THIS ISSUE: Megabar Pressures in Submicron Volumes /2 (Transformations like the creation of metals from gases and the conversion of insulators to superconductors are possible under ultrahigh pressures. Arthur L. Ruoff, Class of 1912 Professor and director of the Department of Materials Science and Engineering at Cornell, discusses his research and its potential.) ... In the Diamond Anvil Cell: Mineral Samples at High Pressure Give Information on Earths Interior /11 (The geological significance of studying minerals at mantle pressures and temperatures, and laboratory techniques for creating these conditions, are explained by William A. Bassett, Cornell professor of geological sciences.) ... The Flow of Rock /18 (Other high-pressure, high-temperature laboratory techniques are used by David L. Kohlstedt, assistant professor of materials science and engineering, to study thebehavior, including creep, of minerals in Earth's mantle.) ... Commentary /27 (Thomas E. Everhart, Cornell's dean of engineering, is interviewed after three months on the job.) ... Vantage /31 (Cornell rocket experiments during the solar eclipse, and blacksmithing as an avocation for an engineering professor and dean are the subjects of photo features.) ... Register /38 ... Faculty Publications /44