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PUBLICATIONS OF SOWER, POTTS & CO., PHILADELPHIA.

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The uniform testimony of teachers who have introduced these grammars is, that they have been

most agreeably surprised at their effects upon pupils. They are easy to understand by the youngest pupil, and the lessons before dreaded become a delight to teacher and pupils. Extraordinary care has been taken in grading every lesson, modeling rules and definitions after a definite and uniform plan, and making every word and satence an example of grammatical accuracy. They only need a trial to supersede all others.

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PUBLICATIONS OF SOWER, POTTS & CO., PHILADELPHIA.

THE

NORMAL SERIES OF MATHEMATICS.

BY EDWARD BROOKS, A.M.,

PRINCIPAL OF PENNSYLVANIA STATE NORMAL SCHOOL AT MILLERSVILLE.

This Series has had an extraordinary success, and is used in very many of the best Normal Schools, Seminaries and Public Schools in the country. Wherever known, the works receive the highest commendation.

PRICE Brooks's Normal Primary Arithmetic . . 22 cts. The Primary contains Mental and Written Exercises for very young pupils. Its treatment is very plain, easy and progressive.

PRICE Brooks's Normal Elementary Arithmetic 45 cts. The Elementary will furnish a practical business education in a shorter time and with less labor

than any other, and is emphatically the work for those pupils who must be qualified for common business in one or two terms. Key, *50 cts.

PRICE

Brooks's New Normal Mental Arithmetic 35 cts.

The New Mental is a philosophical and comprehensive treatise upon the Analysis of Numbers.

It is easily mastered by young pupils, and those who accomplish it are ready to grapple with the most difficult problems. It makes logical thinkers on all subjects. All who use it say they cannot be induced to dispense with it. Key, *38 cts.

PRICE

Brooks's New Normal Written Arithmetic 80 cts.

The New Written is a thoroughly practical work full of business applications. (See Bills and Ac

counts, Taxes, Banking, Exchange, Custom-House Duties, Insurance, Building Associations, etc.) Its treatinent is novel, very successful in the school-room and popular among the best educators. Key, $1.

PRICE

Brooks's Normal Union Arithmetic. Part II. 45 cts. Brooks's Normal Union Arithmetic. Part III.45 cts.

Brooks's Normal Union Arithmetic. Complete 90 cts. In the Union, Mental and Written Arithmetic are so combined that the pupil may obtain a

thorough course in arithmetical analysis while becoming familiar with the application of the science to practical business. This union is here made not a mere nominal one, but a scientific reality. Key, $i.

PRICE Brooks's Normal Higher Arithmetic .... $1.25 Original, complete and practical. It abounds with striking novelties, presented with the utmost

clearness and simplicity, all calculated to make the student a master of the theory of Arithmetic. It also represents the actual business as practiced in the counting-houses of merchants, custom-houses, banks and all kinds of incorporated companies.

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