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    Academic and Scholarly Articles

  ScienceDirect  Full Text Available Authentication Required
    1823-present, varies by title
Elsevier's scientific database for finding journal articles and book chapters from more than 2,500 peer-reviewed journals and more than 11,000 books. Perkins Library supplies full-text access to five journals via ScienceDirect: Animal Behaviour, Cell, The Lancet, The Lancet Infectious Diseases, and Molecular Cell.
  SciFinder Scholar Registration / Login  Full Text Available Authentication Required
current students and faculty ONLY
SciFinder Scholar retrieves information contained in databases produced by Chemical Abstracts Service (CAS): CAplus (contains over 19.6 million documents from more than 8,000 journals), CAS REGISTRY (provides access to 32 million specific chemical substances), and CASREACT (provides access to reaction information for more than 5 million single- and multiple-step reactions). For many substances, one may also obtain chemical source and regulatory information from the CHEMCATS and CHEMLIST databases. In addition, SciFinder Scholar also includes the over 19.6 million citations from MEDLINE, produced by the National Library of Medicine.
  STN Easy  Authentication Required
Access from Chemical Abstracts Service (CAS) to more than 200 databases of published research, journal literature, patents, structures, sequences, properties, and other data. Since the library is charged per search and record(s) displayed, access is limited by username and password; contact Jayne Germer.  
  TOXLINE  Authentication Required
    2000-present; updated weekly
The National Library of Medicine's index to scholarly literature in all areas of toxicology, including chemicals and pharmaceuticals, pesticides, environmental pollutants, and mutagens and teratogens. This version of TOXLINE does not contain information from Chemical Abstracts Service, BIOSIS, or International Pharmaceutical Abstracts.
  CSA Discovery Guides  Authentication Required
Discovery Guides brief you in the basics of a subject and offer recent insights, while providing the technological tools to enhance your understanding. Each guide links to CSA products that help you find pertinent information, discover publishing opportunities, identify scholars, and create a personal database.

    Electronic Journal Titles

  ACS Publications (Chemistry Journals) 
    1879-present; varies by title
Citations, abstracts, and full text articles of 47 American Chemical Society journals and other publications. Full text extends to the first issue of publication.
  Journal of Chemical Education
  Nucleic Acids Research

    General Indexes to Magazine, Journal & Newspaper Articles

  Academic Search Complete  Full Text Available Authentication Required
    1887-present; updated daily
The world's most comprehensive scholarly, multi-disciplinary full-text database, Academic Search Complete indexes more than 11,200 journals, and provides full text for more than 7,100 full-text periodicals, including more than 6,100 peer-reviewed journals. Includes PDF content going back as far as 1887. Searchable cited references provided for more than 1,300 journals.
  OmniFile Full Text Mega  Full Text Available Authentication Required
Multi-disciplinary database for full-text articles from over 1,750 publications, and abstracts and citations for over 3,500 publications in subjects that include education, general science, social sciences, business, art, etc.


    Online Catalogs


  Doane's Online Library Catalog
A shared catalog of 10 Nebraska private-college libraries, including Perkins Library at Doane College. Search one library or all 10 by selecting from "Library" drop-down list.
  WorldCat  Authentication Required
    1000 CE-present; updated daily
Includes over 40 million bibliographic records representing cataloged resources in 400 languages owned by libraries around the world. Materials date back to the 11th century. Owning libraries can be identified for books, journals, archival resources and electronic resources. The database can also be searched through its free web interface, at


    Dissertations and Theses


  WorldCat Dissertations and Theses  Authentication Required
    updated daily
Index of over 8 million dissertations, theses and published material based on theses cataloged by member libraries, including all subjects.

    General Reference Works


  Oxford Reference Online  Full Text Available Authentication Required
Over 100 full text language and subject dictionaries and reference works. Topics covered include general reference, language, science and medicine, humanities, social sciences, and business.


A chemistry directory maintained at the University of Sheffield.
Includes access to a wide variety of information, including the Beilstein Abstracts and the Chemistry Preprint Server. Free registration is required. 
  Chemical Information
From the National Library of Medicine, an interface for retrieving information in a wide variety of databases about specific chemicals; can also search by registry number.
  Molecule of the Month
A British site that presents information about a different molecule every month. Previous month's molecules are included back to 1996.
  NIST Atomic Spectra Database
Spectral lines and energy levels; from the National Institute of Standards and Technology.
A search engine for science web sites and journal articles (which may not be available for free). 
A periodic table online. 

*Descriptions for websites are from the Folke Bernadotte Memorial Library at Gustavus Adolphus College.