BOOK II.

I. Weights and Measures, &c. 124 II. Rule of Three 144 III. Interest, &c. 150

APPENDIX. I. On the mode of computing 161 II. On verification by casting out nines and elevens 166 III. On scales of notation 168 IV. On the definition of fractions 171 V. On characteristics 174 VI. On decimal money 176 VII. On the main principle of book-keeping 180 VIII. On the reduction of fractions to others of nearly equal value 190 IX. On some general properties of numbers 193 X. On combinations 201 XI. On Horner’s method of solving equations 210 XII. Rules for the application of arithmetic to geometry 217

ELEMENTS OF ARITHMETIC.