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EVERY THING THAT IS USEFUL AND CURIOUS
IN THAT ART,

IS FULLY CONSIDERED AND EXPLAINED.

BK ROBERT GIBSON.

Revised, Corrected and Adapted to the use of Schools, American Surveyors, &c.
*: BY JOHN D. CRAIG.

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B.ALTIMORE: s
PUBLISHED BY F. LUCAS, JUN. AND JOSEPH CUSHING.
J. Robinson, printer.

DISTRICT or MARYLAND, ss.

BE IT REMEMBERED, That on this Twelfth day of No*# vernber, in the Forty-first year of the Independence of the United so States, of America, F. Lucas, Jun. of the said District, hath

deposited in this office the title of a Book, the right whereof he claims as Proprietor; in the words following, to wit:

“A Treatise on 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.—by Robert Gibson.—Revised, Sorrected and Adapted to the use of Schools, American Surveyors, &c. by John D. Craig.”

In conformity to the act of the Congress of the United States, entitled, “An act for the encouragement of learning, by securing the copies of maps, charts and books, to the authors and proprietors of such copies during the times therein mentioned.” And also to the act, entitled, “An act supplementary to an act, entitled, “An act for the encouragement of learning, by securing the copies of maps, charts, and books, to the authors and proprietors of such copies during the times therein mentioned,” and extending the benefits thereof to the arts of designing, engraving, and etching historical and other prints.” PHILIP MOORE, Clerk of the District of Maryland.

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THE present edition of Gibson's Surveying, being intended for the use of schools, as well as for the American reader and surveyor in general, several alterations have been made in various parts of the work. Useless calculations have been either abridged, or entirely omitted, and a number of new examples for calculating surveys, and dividing of land, substituted in their room. Different parts of those calculations are designedly omitted, for the better exercising of the learner. And it is presumed, the arrangement of the plates will . be found highly advantageous, both for the . convenience of the reader and the preservation of the book. The press has been carefully corrected, and it is hoped that the work is as free of such errors as any publication of the

kind.

Baltimore, 1816.

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