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(

OF

THE PRINCIPLES AND PRACTICE

OF

ROAD-MAKING:

COMPRISING

THE LOCATION, CONSTRUCTION, AND IMPROVEMENT

OF

ROADS,

(COMMON, MACADAM, PAVED, PLANK, ETC.)

AND

RAIL-ROADS.

BY

W. M. GILLESPIE, A. M., C. E.

PROFESSOR OF CIVIL ENGINEERING IN UNION COLLEGE.

FIFTH EDITION, WITH ADDITIONS.

Every Judicious improvement in the establishment of ROADS and bridges
increases the value of land, enhances the price of commodities, and augments
the public wealth."
DE WITT CLINTON.

NEW YORK

PUBLISHED BY A. S. BARNES & CO.

51 JOHN-STREET.

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