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OR A COMPLETE
SYSTEM OF ARITHMETIC,
ADAPTED TO MODERN PRACTICE.
EXPLAINING THE FOUNDATION OF THE RULES, AND THE
BEST METHODS OF APPLYING THEM :
Illustrations of Commercial Subjects.
FOR THE USE OF SCHOOLS.
JOHN DAVIDSON, A. M. BURNTISLAND;
Numerorum notitia, cuicumque primis saltem literis erudito,
AND LONGMAN, HURST, REES, ORME & BROWN,
On few subjects have more produetions issued from the press, than on Arithmetic; yet there is still a complaint among judicious Teachers, that these productions are often but ill adapted to the purposes of instruction. While most of them contain a great deal of obsolete and useless matter, especially in the form of exercises, they are very deficient in matter indispensably requisite to convey to learners' a full and clear view of the principles and modern practice of calculation.
In the following pages, an attempt is made to supply a text-book, for the use of schools, free from these imperfections ; comprising a full course of such Arithmetical instruction, as is necessary for preparing young men either for prosecuting their mathematical studies with advantage, or for the mercantile profession, and business in general; and containing nothing but what has a direct tendency to promote these objects.
The Editors trust, that the definitions in this tract will be found accurate, the rules concise and