OF

PLANE AND SPHERICAL

TRIGONOMETRY,

WITH THEIR APPLICATIONS TO

MENSURATION, SURVEYING, AND

NAVIGATION.

BY ELIAS LOOMIS, LL.D.,

PROFESSOR OF MATHEMATICS AND NATURAL PHILOSOPIIY IN THE UNIVERSITY OF TIIR CITY

OF NEW YORK, AUTHOR OF A “COURSE OF MATHEMATICS," ETO.

FOURTEENTH EDITION.

NEW YORK:

HARPER & BROTHERS, PUBLISHERS,

FRANKLIN SQUARE.

1859.

Entered, according to Act of Congress, in the year one thouse

eight hundred and fifty-eight, by