Integrates authoritative analyses, concise explanations, and historical material to provide a powerful research and reference tool on the American voter, major and minor political parties, campaigns and elections, and historical and modern races for Congress, the presidency, and governorships. Access and download results for presidential elections (back to 1789), congressional elections (House back to 1822 and Senate back to 1908), and gubernatorial elections (...

Comprehensive coverage of specific topics such as: optics, laser physics, solid state and semiconductor physics, atom and nuclear physics, and biophysics. Searchable by subject, article and keyword.

Online edition that corresponds to 16 volumes of the print reference. Valuable tool for research and work in areas of probability theory, biostatistics, quality control, and economics. Emphasis on applications of statistical methods in sociology, engineering, computer science, biomedicine, psychology and survey methodology.

Electronic access to Harper's Weekly: 1857-1912.