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Using the Catalogs
General instructions for locating materials are given in Research Guide No. 1, "How Do I Find A Book"; The following information is specific to the topic at hand.
If the open shelf materials from the Main Reading Room collections listed in this guide do not provide enough information, you may find additional sources by consulting the catalogs in the Public Catalog Room.
Typical natural history subject headings (many with subdivisions) that may be searched directly in CATNYP are:
The four-volume set of Library of Congress Subject Headings, found near the CATNYP terminals, can be consulted for further details.
The subject entries in the Dictionary Catalog often vary from those in CATNYP; consult a librarian if problems are encountered.