The USDA has some databases useful for biological research. Since this is a different federal agency, they have their own ways of searching that may be different from the National Institutes of Health.
The National Agricultural Library (NAL) is one of five national libraries of the United States. It houses one of the world's largest collections devoted to agriculture and its related sciences.
The Thesaurus and Glossary are online vocabulary tools of agricultural terms in English and Spanish and are cooperatively produced by the National Agricultural Library, USDA, and the Inter-American Institute for Cooperation on Agriculture as well as other Latin American agricultural institutions belonging to the Agriculture Information and Documentation Service of the Americas (SIDALC).
SEARCH is the USDA National Agricultural Library’s main search tool. It provides simple, one-stop access to more than 7 million records covering all aspects of agriculture and related disciplines.
SEARCH Everything for results from the Catalog and Articles database (AGRICOLA), PubAg, and the NAL Digital Collections (NALDC)
