THE COMMON SCHOOL ARITHMETIC; COMBINING ANALYSIS AND SYNTHESIS; ADAPTED TO THE BEST MODE OF INSTRUCTION IN THE ELEMENTS BY JAMES S. EATON, M. A., INSTRUCTOR IN PHILLIPS ACADEMY, ANDOVER, AND AUTHOR OF "6 EASY LESSONS IN MENTAL BOSTON: UN VERS TY 464130. EATON AND BRADBURY'S MATHEMATICAL SERIES. Used with unexampled success in the best Schools and Academies · in the Country. EATON'S PRIMARY ARITHMETIC. EATON'S ELEMENTS OF ARITHMETIC. EATON'S COMMON SCHOOL ARITHMETIC. EATON'S COMMON SCHOOL ARITHMETIC (with Answers). EATON'S INTELLECTUAL ARITHMETIC. EATON'S HIGH SCHOOL ARITHMETIC. BRADBURY'S ELEMENTARY ALGEBRA. BRADBURY'S ELEMENTARY GEOMETRY. BRADBURY'S ELEMENTARY TRIGONOMETRY. BRADBURY'S GEOMETRY AND TRIGONOMETRY, in one volume. BRADBURY'S ELEMENTARY GEOMETRY (University Edition). BRADBURY'S TRIGONOMETRY AND SURVEYING. BRADBURY'S EATON'S PRACTICAL ARITHMETIC. Copyright by JAMES S. EATON, 1863. Copyright by TAGGARD & THOMPSON, 1867. PREFACE. THERE is a large class of pupils whose limited time renders it impossible for them to pursue an extended mathematical course. The author, in accordance with his original intention to prepare a series of text-books in Arithmetic, has now endeavored to adapt this work to the wants of this class of pupils. With this purpose in view, the simple, elementary, practical principles of the science are more fully presented than in his larger work, while the more intricate and less important parts have been treated more briefly or entirely omitted. A corresponding change in the character of the examples has also been made. As in the larger work, so here, constant attention has been paid to the brevity, simplicity, perspicuity, and accuracy of expression; and no effort has been spared in the endeavor to render the mechanical execution appropriate and attractive. Definitions, tables, and explanations of signs have been distributed through the book where their aid is needed, to enable the pupil to learn them more readily than when they are presented collectively. Nearly all the examples have been prepared for this book, and are different from those of the larger work; still, to secure uniformity of language (a matter of great importance, as every experienced teacher knows), the leading examples in the several subjects, the definitions and rules, with few exceptions, have been intentionally retained witb but little modification. |