This is the third in a biennial series of reports designed to furnish a comprehensive overview of the status of United States scientific and technological efforts as they relate to the employment and other characteristics of science and engineering (S/E) personnel. Chapter I discusses the utilization patterns of scientists and engineers, examining current employment and trends, the character of science and technology activities (from industrial, academic and federal government perspectives), and women, racial minorities, Hispanics, and the physically handicapped in S/E. Chapter II examines labor market indicators, focusing on labor force participation, unemployment rates, S/E employment rates, S/E underemployment rates, S/E underutilization rates, salary trends, and other indicators. Chapter III examines the dynamics of S/E labor markets. Areas considered include precollege science and mathematics education (focusing on achievement levels and coursetaking habits which may influence students' decisions to enter S/E careers), postsecondary science and mathematics education, and sources of flow in the S/E market (including projected supply/demand conditions). Also included are highlights of major findings and (in an appendix) 35 tables which provide a comprehensive summary of data on S/E personnel. (JN)