## A complete treatise on practical land-surveying |

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ABCD acres angle Answer arrow base line breadth bushels CARPENTER'S RULE cask centre chain circle circular circumference circumferentor cone construction cross-staff curved decimals diagonal diameter A—B difference direction Ditto divided division draw drawn edge ellipse equal Examples feet 6 inches fence field notes figure FIND THE AREA FIND THE SOLIDITY frustum gallons hyperbola hypothenuse inches inclosure Indian ink land Land-Agent land-surveying land-surveyors length logarithm manorial method middle diameter multiplied offsets parabolic parallel parallel ruler parallelopipedon pencil perpendicular depth perpendicular height plate plotting practical PROBLEM proof lines protractor quantity quarter girt quotient radius rectangle Required the area Required the solidity rhombus roads roods rule Rule.—Multiply scale segment shillings side similar manner sine sliding rule spirit level square links stake station straight line superficial content surface survey surveyors telescope theodolite thickness trapezium trapezoid trigonometry vessel whole yards York

### Popular passages

Page 1 - Any two sides of a triangle are together greater than the third side.

Page xviii - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds.

Page 279 - ... for the second term, and the greater for the first ; and in either case multiply the second and third terms together, and divide the product by the first for the answer, which will always be of the same denomination as the third term.

Page 286 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.

Page 185 - RULE.* To the sum of the areas of the two ends add four times the area of a section parallel to and equally distant from both ends, and this last sum multiplied by £ of the height will give the solidity.

Page 184 - To twice the length of the base add the length of the edge ; multiply the sum by the breadth of the base, and by one-sixth of the height.

Page 2 - Plane figures that have more than four sides are, in general, called Polygons ; and they receive other particular names, according to the number of their sides or angles.

Page 245 - To three times the square of the radius of the base, add the square of the height.

Page 274 - The difference of the logarithms, as here used, means the algebraic difference ; so that, if the logarithm of the divisor have a negative characteristic its sign must be changed to positive, after diminishing it by the unit, if any, carried in the subtraction from...

Page 241 - To twice the square of the middle diameter, add the square of the diameter of one end; multiply the sum by the length of the frustum, and the product by '2618 for the content.