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FOR PRACTICAL MEN:

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A COMMON-PLACE BOOK

OF

PRINCIPLES, THEOREMS, RULES, AND TABLES,
IN VARIOUS DEPARTMENT?

OF

PURE AND MIXED MATHEMATICS,

WITH THEIR APPLICATION;

ESPECIALLY V

TO THE PURSUITS OF SURVEYORS, ARCHITECTS, MECHANICS,
AND CIVIL ENGINEERS.

WITH NUMEROUS ENGRAVINGS.

BY

OLINTHUS GREGORY, LL.D., F.R.A.S.,

Corresponding Associate of the Academy of Di1on; Honorary Member of the Literary and Philosophical Society of
N«• fork; of the New York Historical Society; of the Literary and Philosophical, and the Antiquarian
Societies of Newcastle-upon-Tyne; of the Cambridge Philosophical Society; of the Institution
of Civil Engineers, Sc. ice, and Professor of Mathematics <n the Boyal Military Academy.

SECOND AMERICAN FROM THE SECOND LONDON EDITION,
CORRECTED AND IMPROVED.

Only let men awake• and fix their eyes, one while on the nature of things• another while
on the application of them to the use and service of man kind. Z^rd Bacon.

PHILADELPHIA:

HENRY CAREY BAIRD,

INDUSTRIAL PUBLISHER,
No. 406 WALNUT STREET.

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THOMAS TELFORD, Esq. E.K.S.E.

PRESIDENT;

AND TO THE VARIOUS

OFFICERS AND MEMBERS

OF THE

INSTITUTION OF CIVIL ENGINEERS;

THIS COMPENDIUM

OF

MATHEMATICS FOR PRACTICAL MEN,

IS MOST RESPECTFULLY DEDICATE

BY THEIR

FAITIFUL AND OBLIGED SERVANT

! THE AUTHOR.

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