### Фй лЭне пй чсЮуфет -Уэнфбоз ксйфйкЮт

Ден енфпрЯубме ксйфйкЭт уфйт ухнЮиейт фпрпиеуЯет.

### Ресйечьменб

 SIMULTANEOUS EQUATIONS 138 INEQUALITIES 165 EVOLUTION 174 THEORY OF EXPONENTS 191 RADICALS 201
 UNDETERMINED COEFFICIENTS 317 THE BINOMIAL THEOREM 332 LOGARITHMS 339 РнехмбфйкЬ дйкбйюмбфб

### ДзмпцйлЮ брпурЬумбфб

УелЯдб 258 - In any proportion, the terms are in proportion by Composition ; that is, the sum of the first two terms is to the first term as the sum of the last two terms is to the third term.
УелЯдб 246 - To express that the ratio of A to B is equal to the ratio of C to D, we write the quantities thus : A : B : : C : D ; and read, A is to B as C to D.
УелЯдб 359 - Teacher's Manual to Sheldon's History. Puts into the instructor's hand the key to the above system.
УелЯдб 31 - Divide the first term of the dividend by the first term of the divisor, and write the result as the first term of the quotient.
УелЯдб 359 - Hall's Method of Teaching History. " Its excellence and helpfulness ought to secure it many readers,
УелЯдб 49 - The square of the difference of two quantities is equal to the square of the first minus twice the product of the first by the second, plus the square of the second.
УелЯдб 249 - In a series of equal ratios, any antecedent is to its consequent, as the sum of all the antecedents is to the sum of all the consequents. Let a: 6 = c: d = e :/. Then, by Art.
УелЯдб 258 - In any proportion the terms are in proportion by Alternation ; that is, the first term is to the third as the second term is to the fourth.
УелЯдб 59 - Arts. 200 and 201 we derive the following rule : Extract the required root of the numerical coefficient, and divide the exponent of each letter by the index of the root.
УелЯдб 289 - The logarithm of a product is equal to the sum of the logarithms of its factors.