27.-A TABLE shewing the DAY of the MONTH to every day of the YEAR, the Number of Days between any two Dates, and the To ascertain the number of days between one date and another, deduct the earliest from.the latest. The decimal for any number of days is found opposite that number. This Table will be found very useful in all calculations of Interest, Salaries, Partnership, &c. Penalty for evading the Stamp £10 if under £100, and £20 if above. AGREEMENTS-Under 2160 words, and of £20 value or upwards, 2s. 6d. BONDS-For every £50, or fraction of the same, 1s. 3d. up to £300: and 2s. 6d. for every £100, or fraction of the same above £300. A.-To 2 months after date, inclusive.-On demand, and to 60 days after sight, inclusive. B.-Above 2 months after date, and above 60 days after sight. Penalty for post-dating Bills, £100. RULES FOR MEASUREMENTS AND GENERAL COMPUTATIONS. For the better understanding of these Rules, it may be desirable to say something of the nature and use of Decimal fractions. They are such as have 10, or some power of 10 (as 100, 1000, &c.) for a denominator. Their denominator is always an unit with as many cyphers to the right as there are places in the numerator; hence, in expressing them, it is only necessary to state the numerator with a point to the left. Their value decreases in a tenfold proportion by adding a cypher to the leftthus, 7, 07, 007, are respectively 7-tenths, 7-one hundredths, 7-one thousandths of an unit: cyphers to the right obviously have no effect on their value. Addition, Subtraction, Multiplication, and Division of decimals, are performed as in whole numbers, observing these simple rules. In Addition and Subtraction, place the figures so that the points fall directly under each other. In Multiplication, place them as whole numbers, regardless of the points, but separate from the product, as many places to the right as there are decimal places in the multiplier and multiplicand together: if there are not so many places, add cyphers to the left to supply the deficiency. In Division, place them as whole numbers, but cut off from the quotient as many places to the right as the decimal places in the dividend exceed those of the divisor: if there are not so many places in the quotient, add cyphers to the left to supply the deficiency; but, if there are more decimal places in the divisor than in the dividend, prefix cyphers to the right of the dividend till they are equal; the quotient will then be whole numbers until these are exhausted, By adding cyphers to the right, any less number may be divided by a greater-hence, a vulgar fraction is reduced to a decimal, by dividing the numerator by the denominator. A decimal is converted into a vulgar fraction, by multiplying the decimal by the denominator of the vulgar fraction. Attention to these few observations will enable those unused to decimals to apply them freely to the following Rules. 1. To find the Surface or Area of Squares and Rectangles-Multiply the length by the breadth. 2. To find the Solidity of Squares and Rectangles-Multiply the length by the breadth, and that product by the depth. 3. To find the Area of a Triangle-Multiply one of its sides by a perpendicular let fall from the opposite angle, and take half the product. 4. To find the Area of an Oval-Multiply the longest axis by the shortest, and the product by 7854. |