A

TREATISE

ON

LAND-SURVEYING:

COMPRISING

THE THEORY

DEVELOPED FROM FIVE ELEMENTARY PRINCIPLES;

AND THE PRACTICE

WITH THE CHAIN ALONE, THE COMPASS, THE TRANSIT,
THE THEODOLITE, THE PLANE TABLE, &c.

ILLUSTRATED BY

FOUR HUNDRED ENGRAVINGS,

AND A MAGNETIC CHART.

By W. M. GILLESPIE, LL. D., CIV. ENG.,

PROFESSOR OF CIVIL ENGINEERING IN UNION COLLEGE.
AUTHOR OF A MANUAL OF ROAD-MAKING," ETC.

EIGHTH EDITION.

NEW YORK:

D. APPLETON AND COMPANY,
90, 92 & 94 GRAND STREET.

LONDON: 16 LITTLE BRITAIN.

1868.

Entered, according to the Act of Congress, in the year 1855, by

WILLIAM MITCHELL GILLESPIE,

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