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MENTAL

A RITHMETIC,

OR

FIRST LESSONS IN NUMBERS

FOR CHILDREN.

BY JAMES B. THOMSON, LL.D.,

AUTHOR OF PRACTICAL ARITHMETIC; HOHER ARITHMETIC; EDITOR

DAT'S SCHOOL ALGEBRA; LEGENDRE'S GEOMETRY, ETC.

ONE HUNDRED AND TWENTY-FIFTH EDITION.

NEW YORK:
IVISON, PHINNEY & COMPANY,
48 & 50 WALKER STREET.

CHICAGO.
8. C. GRIGGS & COMPANY,
89 & 41 LAKE STREET.

1863.

juin

QA 103 15484 1863

Entered according to Act of Congress, in the year 1848,

BY JAMES B. THOMSON, in the Olerk's Cmco of the Northern District of New York.

STEREOTYPED BY TROXAS B SMITA
216 W LLLAN STREN, NEW YORK.

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