A complete treatise on practical land-surveying |
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Page iii
... correct in theory , but cannot be relied on in practice ; and it is experience alone that can teach what methods are most certain in their results , and most suitable to lead the pupil into the business of practical surveying . The ...
... correct in theory , but cannot be relied on in practice ; and it is experience alone that can teach what methods are most certain in their results , and most suitable to lead the pupil into the business of practical surveying . The ...
Page 9
... correct map of the county of which the estate is a part . 2. A meridian line may be found in the field by fixing a pole perpendicularly in a station made in the base line , and then measuring a fixed line in the direction of the shadow ...
... correct map of the county of which the estate is a part . 2. A meridian line may be found in the field by fixing a pole perpendicularly in a station made in the base line , and then measuring a fixed line in the direction of the shadow ...
Page 10
... correct . THE STEEL PEN . The steel pen is used for drawing the fence lines , & c . , on the plan . By this instrument a line may be drawn to any strength by turning the screw , which is preferable to the common pen , as the lines may ...
... correct . THE STEEL PEN . The steel pen is used for drawing the fence lines , & c . , on the plan . By this instrument a line may be drawn to any strength by turning the screw , which is preferable to the common pen , as the lines may ...
Page 12
... correct plan of what you have measured . 5. When making any sketching of the fence , stand with your face in the direction of the line you are measuring . 6. After the first line is measured , some note down , departed from the right or ...
... correct plan of what you have measured . 5. When making any sketching of the fence , stand with your face in the direction of the line you are measuring . 6. After the first line is measured , some note down , departed from the right or ...
Page 13
... will be enabled to set his arrows without any direction from the follower . This is the most facile and correct method the author has ever seen practised . 10. Avoid all obstructions , such as hills , quarries LAND - SURVEYING . 13.
... will be enabled to set his arrows without any direction from the follower . This is the most facile and correct method the author has ever seen practised . 10. Avoid all obstructions , such as hills , quarries LAND - SURVEYING . 13.
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Common terms and phrases
ABCD acres allotment angle Answer arrows base line breadth bushels cask centre circle circular circumference circumferentor cone construction cross-staff curved decimals diagonal diameter A-B direction distance Ditto divided draw drawn edge ellipse equal Examples feet fence fence lines field notes figure FIND THE AREA FIND THE CONTENT FIND THE SOLIDITY four-sided field frustum gallons go North East hyperbola inches inclosure Indian ink land Land-Agent land-surveying land-surveyors length logarithm manorial measure method middle diameter multiplied opposite parabolic parallel parallel ruler parallelopipedon pencil perpendicular perpendicular height plate poles practical prick PROBLEM proof lines protractor quantity quotient radius rectangle Required the area Required the plan Required the solidity rhombus right-angled roads roods Rule Rule.-Multiply segment side similar manner sine sliding rule square links stake station straight line surface survey surveyors telescope theodolite trapezium trapezoid vessel William Thompson yards York
Popular passages
Page 3 - Any two sides of a triangle are together greater than the third side.
Page 2 - 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 269 - ... 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 276 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Page 167 - 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 166 - 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 4 - 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 235 - To three times the square of the radius of the base, add the square of the height.
Page 264 - 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 231 - 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.