2 Publications of CHRISTOPHER SOWER COMPANY, Philadelphia. THE NORMAL SERIES OF MATHEMATICS. BY EDWARD BROOKS, A. M., PH.D., SUPERINTENDENT OF PUBLIC SCHOOLS OF PHILADELPHIA. 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. BROOKS'S NEW ARITHMETICAL SERIES. IN TWO BOOKS. Brooks's Normal Rudiments of Arithmetic. Two entirely new books, embodying Dr. Brooks's life-time experience in Common School BROOKS'S NORMAL FULLER 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 four books: Brooks's New Normal Primary Arithmetic. Brooks's Normal Elementary Arithmetic. Brooks's New Normal Mental Arithmetic. Brooks's New Normal Written Arithmetic. The Primary contains Mental and Written Exercises for very young pupils. Its treatment is very plain, easy and progressive. The Elementary will furnish a practical business education in a shorter time and with less labor than any other. Key, #41 cts. The New Mental is a philosophical and comprehensive treatise upon the Analysis of Numbers. Key, #31 cts. The New Written is a thoroughly practical work full of business applications. Its treatment is novel, very successful in the school-room and popular among the best educators. Key, *80 cts. BROOKS'S NORMAL UNION SERIES. The Union Series is a condensed course, complete in Two Books, as follows: 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. 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. Key, *88 cts. 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 theory of Arithmetic. It also represents actual business. Key, *$1.25. I ! Publications of CHRISTOPHER SOWER COMPANY, Philadelphia. Brooks's Normal Geometry and Trigonometry. By the aid of Brooks's Geometry the principles of this beautiful science can be easily acquired in one term. It is so condensed that the amount of matter is reduced one half, and yet the 'chain of logic is preserved intact. The subject is made interesting and practical by the Introduction of Theorems for original demonstration, Practical Problems, Mensuration, etc., In their appropriate places. The success of the work is very remarkable. Key, $1.05*. Brooks's Plane and Solid Geometry. Complete. Brooks's Plane and Spherical Trigonometry. In these new works the subjects have been fully developed with all the clear reasoning, broad analyses, and lucid explanation for which the author has become famous. Newest methods are used. Colleges and schools of the highest grade will find them works they have been wanting. Key, $1.50. Brooks's Normal Algebra. The many novelties, scientific arrangement, clear and concise definitions and principles, and masterly treatment contained in this work make it extremely popular. Each topic 1 is so clearly and fully developed that the next follows easily and naturally. Young pupils can handle it, and should take it up before studying Higher Arithmetic. It can be readily mastered in one term, and only needs introduction to make it indispensable. Key, $1.05*. Peterson's Familiar Science. Peterson's Familiar Science. 12mo. This popular application of science to every-day results is universally liked, and has an im. mense circulation. No school should be without it. It is taught with ease. Griffin's Lecture Notes on Chemistry. BY LA ROY F. GRIFFIN, PROF. OF NATURAL SCIENCES AND ASTRONOMY, LAKE FOREST UNIVERSITY, ILL. Professor Griffin presents his subject simply, clearly and logically, his definitions are brief and clear, and his experiments vivid and impressive, so that the subject is easily mastered. The latest applications of the science to Electric Lights, Telephone, Phonograph, ElectroPlating, Magnetic Engines, Telegraphing, etc., are lucidly explained. Reading French Grammar. Irregular Fr. Verbs. Series of Modern French Authors. Annotated. BY ED. H. MAGILL, Ex-President of Swarthmore College. Sheppard's Text-Book of the Constitution. The ablest jurists and professors in the country, of all political views, have given these works their most unqualified approval. Every young voter should be master of their contents. Montgomery's Industrial Drawing. This consists of a series of Drawing Books, comprising a Primary and Intermediate Course. The system is self-teaching, is carefully graded and is easily taught. |