Index to Collections in ARC
The index to Collections in ARC is arranged alphabetically by Collection Identifier and provides ARC Search Links into the catalog. An Index to Record Groups in ARC is also available. The ARC Tutorial: Hierarchy provides guidance on using the "Search Within" feature in ARC, which is available at the Collection level.
Collection IAC: Organization of American States Collection of Photographs of Delegates to the First International Conference of American States (1889 - 1890)
Collection IBM: International Business Machines Corporation Collection (1935 - 1945)
Collection ICPSR: Records of the Inter-university Consortium for Political and Social Research (1983 - 1999)
Collection IKE: White House Audio Collection (Eisenhower Administration) (1933 - 1952)
Collection IRWIN: Ralph R. Irwin Collection
Collection ISB: Isaac Schlossbach Collection (ca. 01/1930 - ca. 12/1930)