AND

PRACTICAL GEOMETRY;

CONTAINING

TABLES OF WEIGHTS AND MEASURES, VULGAR AND
DECIMAL FRACTIONS,

MENSURATION OF AREAS, LINES,
SURFACES, AND SOLIDS,

LENGTHS OF CIRCULAR ARCS, AREAS OF SEGMENTS AND
ZONES OF A CIRCLE, BOARD AND TIMBER MEASURE,
CENTRES OF GRAVITY, &c., &c.

TO WHICH IS APPENDED A

TREATISE ON THE CARPENTER'S SLIDE-RULE AND

GAUGING.

BY CHAS. H. HASWELL,

OIVIL AND MARINE ENGINEER.

NEW YORK:

HARPER & BROTHERS, PUBLISHERS,

FRANKLIN SQUARE.

Entered, according to Act of Congress, in the year one thousand eight hundred and fifty-eight, by

In the Clerk's Office of the District Court for the Southern
District of New York.

ΤΟ

NELSON J. WATERBURY, ESQ.,

AS A TRIBUTE TO THE ZEAL, ENTERPRISE, AND PHILANTHROPY HE HAS SO SUCCESSFULLY DISPLAYED, AS A MEMBER OF

THE NEW YORK BOARD OF EDUCATION, IN THE

ADVANCEMENT OF PUBLIC TUITION.

NEW YORK, May, 1858.