GUIDE: American periodicals 1741-1900; an index to the microfilm collections. Z1033.M6H789 This is a microfilm set of periodicals published in the United States from 1741 through the early part of the 20th century. It is comprised of three series: Series I, 1741-1800; Series II, 1801-1850; and, Series III, 1850-1900: Civil War and Reconstruction. The series document the origins of American magazine journalism and the boom in periodical publishing that took place between 1825 and 1850. The Center has purchased analytics for all titles in Series I, II, and III; these records appear in CRLCATALOG. UMI (Proquest) is developing a fee-based full-text index to the collections - CRL does not have access to this database.