THE

NORMAL

ELEMENTARY GEOMETRY:

EMBRACING A BRIEF TREATISE ON

Mensuration and Trigonometry.

DESIGNED FOR

ACADEMIES, SEMINARIES, HIGH SCHOOLS, NORMAL SCHOOLS,
AND ADVANCED CLASSES IN COMMON SCHOOLS.

BY

EDWARD BROOKS, A. M.,

VROFESSOR OF MATHEMATICS IN PENNSYLVANIA STATE NORMAL SCHOOL, AND AUTHOR OF THE NORMAL PRIMARY
ARITHMETIC, NORMAL MENTAL ARITHMETIC, NORMAL WRITTEN ARITHMETIC, ETC.

PHILADELPHIA:

SOWER, BARNES & POTTS,

37 NORTH THIRD STREET.

Entered according to Act of Congress, in the year 1865, by

EDWARD BROOKS,

In the Clerk's Office of the District Court of the United States for the Eastern
District of Pennsylvania.

ELECTROTYPED BY L. JOHNSON & CO.
PHILADELPHIA.