Atlas of Historical County Boundaries : Maine, Massachusetts, Connecticut and Rhode Island

Each volume in the "Atlas of Historical County Boundaries" includes: a user's guide, demonstrating how boundary changes are depicted and how sections of the atlas are interrelated; a consolidated chronology of all boundary changes and related events for each state, with citations to primary sources for every event; for each county, an individual chronology depicting its development in text and maps, large-scale maps of all configurations, area figures in square miles; a table of county creations; a table of censuses; small-scale state outline maps of the county network for census years; an exposition of methods; a bibliography of sources.