Howard's California Calculator ...

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C. F. Howard, 1877 - California - 96 pages
 

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Page 38 - RULE. Divide as in whole numbers, and from the right hand of the quotient point off as many places for decimals as the decimal places in the dividend exceed those in the divisor.
Page 49 - Sow to find the diameter, when the circumference is given. RULE. — Divide the circumference by 3 1-7. To find how many solid feet a -round stick of timber of the same thickness throughout will contain when squared. RULE. — Square half the diameter in inches, multiply by 2, multiply by the length in feet, and divide the product by 144.
Page 41 - Now, an ordinary-sized man can train himself to cover one yard at a stride, on the average, with sufficient accuracy for ordinary purposes. To make use of this means of measuring distances, it is essential to walk in a straight line ; to do this, fix the eye on two objects in a line straight ahead, one comparatively near, the other remote ; and, in walking, keep these objects constantly in line. Farmers and others by adopting the following simple and ingenious contrivance, may always carry with them...
Page 31 - Multiply the numerators together for a new numerator, and the denominators together for a new denominator.
Page 40 - How to measure grain. RULE. — Level the grain ; ascertain the space it occupies in cubic feet; multiply the number of cubic feet by 8, and point off one place to the left.
Page 77 - RULE. — Divide the given sum by the amount of $1 for the given time and rate, and the quotient will be the PRESENT WORTH. from the given sum subtract the present worth, and the remainder will be Hie DISCOUKT.
Page 43 - How to find the number of acres in any plot of land, the number of rods being given. RULE. — Divide the number of rods by 8, multiply the quotient by 5, and remove the decimal point two places to the left.
Page 50 - General rule for measuring timber, to find the solid contents in feet. RULE. — Multiply the depth in inches by the breadth in inches, and then multiply by the length in feet, and divide by 144. To find the number of feet of timber in trees with the bark on. RULE. — Multiply the square of one-fifth of the circumference in inches, by twice the length, in feet, and divide by 144.
Page 7 - An Aliquot Part of a number is such a part as will exactly divide that number; thus, 3, 5, and 7£ are aliquot parts of 15.
Page 10 - ... Russia, Rix Dollar, Rhenish, Rix Dollar of Saxony, Pistole, Spanish, Rial " Cross Pistareen, Other Pistareens, Swiss Livre, Crown of Tuscany, Turkish Piastre, Note. — The true method of estimating the value of foreign coins, is by their weight and purity. EXCHANGE. 542* EXCHANGE, in commerce, signifies the receiving or paying of money in one place, for an equal sum in another, by draft or bill of Exchange.

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