A map of the most inhabited part of New England : containing the provinces of Massachusets Bay and New Hampshire, with the colonies of Conecticut and Rhode Island, divided into counties and townships : the whole composed from actual surveys and its situation adjusted by astronomical observations

This large, detailed map of New England was compiled by Braddock Mead (alias John Green), and first published by Thomas Jefferys in 1755. Green was an Irish translator, geographer, and editor, as well as one of the most talented British map-makers at mid-century. The map was re-published at the outset of the American Revolution, as it remained the most accurate and detailed survey of New England. Of interest are engraved double lines found beneath certain place-names, including Boston. These lines indicate cities whose longitude had been calculated with the aid of the newly invented marine chronometer.

Courtesy of Boston Public Library

norman b leventhal map center collection boston public library norman b leventhal map center new england maps early works to 1800 new england area atlases english thomas jefferys d 1771 john green d 1757 new hampshire massachusets bay rhode island ultra high resolution high resolution map of new england vintage maps

1774

Boston Public Library

https://ark.digitalcommonwealth.org/

Public Domain