Describes the benefits to researchers of the microfiche publication of the "National Inventory of Documentary Sources in the United States," which consists of finding aids for U.S. manuscript and archival collections. Arranged in four parts based on origin, each is described in detail as to scope and arrangement. (EM)

Presents arguments in support of research library microfilm collections of archival sources for use by scholars. Historical background on microfilming and new technological developments enhancing use of microforms are discussed, as well as preservation and other benefits of microfilming. (10 references) (MES)