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A

TREATISE

OF

PRACTICAL SURVEYING;

WHICH 1S DEMONSTRATED

FROM ITS FIRST PRINCIPLES.

WHEREIN

Every thing that is useful and curious in that Art, is
fully considered and explained.

PARTICULARLY,

THREE NEW AND VERY CONCISE METHODS FOR DETERMINING
THE AREAS OF RIGHT-LINED FIGURES ARITHMETICALLY,
OR BY CALCULATION, AS WELL AS THE GEOMETRICAL ONES
HERETOFORE TREATED OF.

The whole Mustrated with Copper-Plates.

BY ROBERT GIBSON,

TEACHER OF THE MATHEMATICS.

THIRD NEW-YORK EDITION.

WITH ALTERATIONS AND AMENDMENTS,

ADAPTED TO THE USE OF

AMERICAN SURVEYORS.

NEW-YORK :

PRINTED BY LEWIS NICHOLS,

FOR EVERT DUYCKINCK, BOOKSELLER & STATIONER,

No. 110 PEARL-STREET.

TA

544
G45

1806

MU

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