OFC

NORMAL

UNION ARITHMETIC,

DESIGNED FOR

COMMON SCHOOLS, NORMAL SCHOOLS, HIGH SCHOOLS,
ACADEMIES, ETC.

BY

EDWARD BROOKS, A. M., PH. D.,

SUPERINTENDENT OF PUBLIC SCHOOLS OF PHILADELPHIA,

FORMER PRINCIPAL OF STATE NORMAL SCHOOL, PENNSYLVANIA, AND AUTHOR
OF "THE NORMAL SERIES OF ARITHMETICS," "NORMAL ELEMENTARY

ALGEBRA,

," "NORMAL GEOMETRY AND TRIGONOMETRY," "NOR-
MAL METHODS OF TEACHING," "MENTAL SCIENCE and
CULTURE, ""PHILOSOPHY OF ARITHMETIC," ETO.

"Analysis and Synthesis ;-the magic wand whose touch unfolds the mys
terious and beautiful relations of numbers.”

PHILADELPHIA:

CHRISTOPHER SOWER CO.,

614 ARCH STREET.

PUBLIC LIBRARY
828176

ASTOR, LENOX AND
TILDEN FOUNDATIONS

R

1919

L

COPYRIGHT, 1878,

BY EDWARD BROOKS, A. M.

INQUIRER P. & P. 00.,
STEREOTYPERS AND PRINTER

LANCASTER, PA.