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Publication coverage: 1907 - present; 100,000+ selected publications from the early 1800s through 1907.SciFinder-n® is the world's most comprehensive source of information on chemical substances and technology. Produced by the Chemical Abstracts Service (CAS), a division of the American Chemical Society (ACS), SciFinder-n® provides access to chemical names, structures, properties, spectra, and reactions for more than 196 million organic and inorganic substances and approximately 70 million protein and nucleic acid sequences. SciFinder-n® covers 10,000+ current and historical journals, patents from 64 patent issuing authorities, and MEDLINE, the biomedical literature database. It also indexes selected books, conference proceedings, theses, reference works, technical reports, and preprints. As of 2022, SciFinder-n contains more than 57 million literature references dating back to the 1800s. Commercial chemical supplier and regulatory information is also available.
Publication coverage: Varies by publicationThe SEG Digital Library provides a single access point and interface consistency for the Society of Exploration Geophysicists' two journals, its meeting abstracts, and its best-selling encyclopedic dictionary. Coverage includes a complete archive all technical articles published in GEOPHYSICS, THE LEADING EDGE, and the SEG Technical Program Expanded Abstracts.
Publication coverage: 1901-1925Sessional Papers are reports and papers which have been tabled in the House of Commons (and sometimes the Senate) and deposited with the Clerk.