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IndexCat logo featuring National Institutes of Healths logo, National Library of Medicine logo, a head and shoulders view of John Shaw Billings, and a collection of books.

NLM IndexCat™ Help Contents


IndexCat™ is the National Library of Medicine's user interface that provides access to the following collections - the digitized version of the printed Index-Catalogue of the Library of the Surgeon General's Office, the Electronic Thorndike and Kibre (eTK for medieval Latin texts), and the Electronic Voigts and Kurtz (eVK2 for medieval English texts). In these instructions, the use of 'Index-Catalogue' refers to the digitized work in five series. IndexCat™ simultaneously searches Index-Catalogue, eTK, eVK2 and NLM's online catalog LocatorPlus®.

Searching NLM IndexCat™

All IndexCat™ searches are comprised of keywords. Currently, there is a maximum limit of 1,000 citations that will display for the Index-Catalogue and eTKeVK2 collections. LocatorPlus will display 10 citations with a link directly to the LocatorPlus® database.

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Search IndexCat™ · Help Contents