### Фй лЭне пй чсЮуфет -Уэнфбоз ксйфйкЮт

Ден енфпрЯубме ксйфйкЭт уфйт ухнЮиейт фпрпиеуЯет.

### Ресйечьменб

 ExPLANATION of Characters 9 Reduction 36 Compound Addition 42 Duopecimals 56 Reduction of Vulgar Fractions 65 Addition of do 72 Addition of Decimals 78 Reduction of do 85
 Geometrical do I 75 182 Insurance 188 188 Compound Interest 202 Annuities at Simple Interest 209 Value of an Annuity for ever at Compound Interest 215 Double do 223 Miscellaneous Questions 239 Computation of Logarithms 247

 Circulating Decimals 93 Addition of do 99 Proportion in Gen ERAL 105 Practice o 118 Compound Proportion 125 Conjoined do I 29 131 Double do 140 Involution 147 Evolution f º 155 Roots of Powers in general 163 Equation of Payments 168
 Multiplication by Logarithms 255 Evolution by do 261 Addition o 27 275 Division o e 294 Involution o 316 Infinite Series e 326 Reduction of two three or more Simple Equations to one 339 Quadratic Equations 354 354 Cubic and Higher Equations 379 GEOMETRY 422

### ДзмпцйлЮ брпурЬумбфб

УелЯдб 354 - If A and B together can perform a piece of work in 8 days, A and C together in 9 days, and B and C in 10 days : how many days would it take each person to perform the same work alone ? Ans.
УелЯдб 56 - In the same manner multiply all the multiplicand by the inches, or second denomination, in the multiplier) and set the result of each term one place removed to the right 'hand of those in the multiplicand.
УелЯдб 138 - As the sum of the several products, Is to the whole gain or loss : So is each man's particular product, To his particular share of the gain or low. EXAMPLES. 1. A, B and C hold a pasture in common, for which they pay 197.
УелЯдб 381 - A point is a dimensionless figure ; or an indivisible part of space. A line is a point continued, and a figure of one capacity, namely, length. A superficies is a figure of two dimensions, namely, length and breadth. A solid is a figure of three dimensions, namely, length, breadth, and thickness.
УелЯдб 168 - The first term, the last term, and the number of terms given, to find the sum of all the terms. RULE.* — Multiply the sum of the extremes by the number of terms, and half the product will be the answer.
УелЯдб 129 - ... have to their consequents, the proportion between the first antecedent and the last consequent is discovered, as well as the proportion between the others in their several respects.
УелЯдб 352 - B's, and B's is triple of C's, and the sum of all their ages is 140. What is the age of each ? Ans. A's =84, B's =42, and C's =14.
УелЯдб 389 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees; and each degree into 60 minutes, each minute into 60 seconds, and so on.
УелЯдб 246 - Briggs' logarithm of the number N ; so that the common logarithm of any number 10" or N is n, the index of that power of 10 which is equal to the said number. Thus, 100, being the second power of 10, will have 2 for its logarithm ; and 1000, being the third power of 10, will have 3 for its logarithm. Hence, also, if 50 = 101-00*7, then is 1.69897 the common logarithm of 50.
УелЯдб 170 - Divide the difference of the extremes by the number of terms, less 1, and the quotient will be the common difference.