The Historical Manuscripts in Series X are only one special case. Such documents are located throughout the collection, often filed as large blocks that almost constitute discrete sub-collections, but frequently mixed among secondary materials as well. Other sections are arranged chronologically, topically, or according to creator or office of origin, as appropriate. The arrangements are described in the detailed scope and content notes for each series or subseries. The Collection has been organized into 12 series.
Some series also contain two or more subseries.
Addenda See the Collection Map for a chart outlining all components of the collection. Series Descriptions Series Descriptions Brief descriptions of the series follow. Click on highlighted links for detailed scope and content notes. 360 cubic ft. Materials on the history of the USDA and agriculture in the United States, including letters, memoranda, press releases, speeches, reports, charts, statistical tables, printed materials, clippings, papers and articles by USDA staff and others.