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most agrceably 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
and making every word and sontance an example of grammatical accuracy.
Publications of CHRISTOPHER SOWER COMPANY, Philadelphia.
NORMAL SERIES OF MATHEMATICS .
BY EDWARD BROOKS, A. M., Ph.D., 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 Schocls, Seminaries and Public Schools in the country. Wherever known, the works receive the highest commendation.
BROOKS'S NORMAL STANDARD SERIES. The Standard Series is a full course intended for Schools and Classes having ample time for a thorough study of the Science. It consists of the following four books :
Brooks's Normal Primary Arithmetic.
Brooks's New Normal Written Arithmetic.
very plain, easy and progressive. 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 com
mon business in one or two terms. Key, *50 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 grápple 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, 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, ve successful in the school-room and popular among the best educators. Key, *$1.
BROOKS'S NORMAL UNION SERIES. The Union Series is a condensed course, complete in Two Books, as follows: Brooks's Normal Union Arithmetic. Part 1. Brooks's Normal Union Arithmetic. Complete. For convenience of certain graded Schools in cities the latter work may be had bound up in two books, as follows:
Brooks's Normal Union Arithmetic. Part 2.
Brooks's Normal Union Arithmetic. Part 3. 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, *$1.
Brooks's Normal Higher Arithmetic.
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 i heory of Arithmetic. It also represents the actual business as practiced in the counting-houses of mer. chants, custom-houses, banks and all kinds of incorporated companies.