The eastern extremity of the base
of the easternmost peak was nearly 2 degrees of arc, or nine-tenths of a
mile in space, to the west of the line as it passed the same latitude.
To erect stations opposite to the base of Mars Hill and upon the heights
of the Aroostook, in order to obtain exact comparisons with the old line
at these points, were considered objects of so much importance as to
determine the commissioner to continue the operations in the field to
the latest practicable period in hopes of accomplishing these ends.
On the 18th day of November the party succeeded in erecting a station
opposite Mars Hill and very near the meridian line. It was thus proved
that the line would pass from nine-tenths of a mile to 1 mile east of
the eastern extremity of the base of the northeast peak of Mars Hill.
On the 30th of November a series of signals was commenced to be
interchanged at night between the position of the transit instrument
on Parks Hill and the highlands of the Aroostook.
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