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A

TREATISE

OF

PRACTICAL SURVEYING ;

WHICH IS 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.

Che 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.

1806.

A

TA 5 GHS 1806

1

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