A plan & section of a survey taken April 20, 1801 on a new prepared course for the Middlesex Canal, from the south end of Richey and Mohaneys job in Polly Carters field, extinding southerly upon the land on the east side of Horn Pond in Woburn to unite with the old work at the north side of the Paul Wymans Howard pasture at the sluce way west of Simpson's Mill, so calld, in Woburn ...