Continental Drift /2 (Plate tectonics?what is it and how has it inlineneed our knowledge ot the earth? In his article on continental drift, Donald L. Turcotte, professor of aerospace engineering, deals with the plate model of the dynamic behavior of the earth.) ... Earthquake Engineering /10 (Peter Gergely associate professor of structural engineering, examines the nature of the threat earthquakes pose for structures and the design problems structural engineers face in atternpting to ?engineer for earthquakes.?) ... Landslides /18 (Landslides, volcanic eruptions, and earthquakes are the three naturally induced phenomena that make of this a truly moving earth. Quarterly editor Donald F. Berth interviewed noted soils specialist David J. Henkel, who explores the causes and character of landslides and their implications for structures.) ... Vantage /27 (A photoessay on the ?Meet the Professors? freshman engineering program at Cornell.) ... Faculty Publications /33 ...Editorial /40