NORMAL

UNION ARITHMETIC,

DESIGNED FOR

COMMON SCHOOLS, NORMAL SCHOOLS, HIGH SCHOOLS,

ACADEMIES, ETC.

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

PRINCIPAL AND PROFESSOR OF MATHEMATICS IN PENNSYLVANIA STATE NORMAI
SCHOOL, AND AUTHOR OF "THE NORMAL SERIES OF ARITHMETICS," "NORMAL
ELEMENTARY ALGEBRA," "NORMAL GEOMETRY AND TRIGONOMETRY,"
"PHILOSOPHY OF ARITHMETIC," ETC.

'Analysis and Synthesis;-the magic wand whose touch unfolds the mysterious and
beautiful relations of numbers."

PHILADELPHIA:

SOWER, POTTS & COMPANY,

530 MARKET ST., AND 523 MINOR ST.

NARVARD COLLEGE LIPPARY
BY EXCHARGE FROM
NEW YORK STATE LIBRARY
FEB 27 1932

COPYRIGHT
EDWARD BROOKS, A. K.,

INQUIRER P. & P. CO.,
STEREOTYPERS AND PRINTERO.

LANCASTER, PA.

1977.