The encyclopedia covers more than 4000 topics, including diseases and symptoms, treatments, surgery, tests and procedures, nutrition and anatomy. A cooperative project of Pangea Systems Inc. and the Marine Biological Laboratory, EcoCyc describes the genes and intermediary metabolism of the bacterium E. coli.
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This site contains a searchable database of over 14,000 articles from The Concise Columbia Encyclopedia, 3rd ed. Photographs and images are available to subscribers for a fee. The well-known Information Please Almanac is available, along with the 57,000 articles from Columbia Encyclopedia, 5th edition, a dictionary of 125,000 English words. All Rights Reserved. The Thomas Jefferson University web site, its contents and programs, is provided for informational and educational purposes only and is not intended as medical advice nor is it intended to create any physician-patient relationship.