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Publication coverage: 18th-19th centuriesCollection of historical records from counties across the United States. American County Histories is currently divided into nine groupings: Central, Mid-Atlantic Part 1, Mid-Atlantic Part 2, Midwest, New England Part 1, New England Part 2, Southeastern, The Southwest, and The West.
Publication coverage: 1980 - present (updated weekly)Analytical Abstracts is a current awareness service for analytical and bioanalytical science. It indexes over 100 international journals from 1980 forward, plus equipment manufacturers' application notes, standards and books.