ARITHMETIC.
FRENCH'S FIRST LESSONS IN NUMBERS. First Lessons in Numbers, in their Natural Order: First, Visible Objects; Second, Concrete Numbers; Third, Abstract Numbers. By John H. French, LL.D. Illustrated. 16mo, Half Leather, 25 cents.
FRENCH'S ELEMENTARY ARITHMETIC FOR THE SLATE. Elementary Arithmetic for the Slate, in which Methods and Rules are based upon Principles established by Induction. By John H. French, LL.D. Ill'd. l6mo, Half Leather, 37 cts.
FRENCH'S MENTAL ARITHMETIC. Mental Arithmetic, in which Combinations of Numbers, Solutions of Problems, and Principles of Arithmetical Analysis are based upon the Laws of Mental Development. By John H. French, LL.D. Illustrated. l6mo, Half Leather, 36 cents.