A complete treatise on practical land-surveyingWhittaker and Company, 1838 - 80 páginas |
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Página 22
... difference in each , the mistake is in the line nearest the greatest difference . Always let your proof angles be as nearly equiangular as the figure of the field will permit : this should be particularly attended to , as neither very ...
... difference in each , the mistake is in the line nearest the greatest difference . Always let your proof angles be as nearly equiangular as the figure of the field will permit : this should be particularly attended to , as neither very ...
Página 55
... difference of the areas of the two circles will be the area of the circular ring . Also , the area may be found by multiplying half the sum of the two circumferences by half the difference of the diameters . Or , measure the ...
... difference of the areas of the two circles will be the area of the circular ring . Also , the area may be found by multiplying half the sum of the two circumferences by half the difference of the diameters . Or , measure the ...
Página 63
... difference of two or three perches , but frequently more ; the above method of proving the dimensions and calculations is adopted by the best practical land - surveyors when casting from the plan , and is a most excellent method , as no ...
... difference of two or three perches , but frequently more ; the above method of proving the dimensions and calculations is adopted by the best practical land - surveyors when casting from the plan , and is a most excellent method , as no ...
Página 70
... the base line , or when there is very little difference in the breadth of them , the false method approximates sufficiently near the truth , for reaping , & c . Examples . 1. To survey part of a field contained 70 LAND - SURVEYING .
... the base line , or when there is very little difference in the breadth of them , the false method approximates sufficiently near the truth , for reaping , & c . Examples . 1. To survey part of a field contained 70 LAND - SURVEYING .
Página 100
... the chain and cross , but the lines are measured much longer and not at right angles . For the difference of the two methods of surveying the pupil is desired to compare plate III . with plate V. lastly from 2 to O 4 , and sketch the H 3.
... the chain and cross , but the lines are measured much longer and not at right angles . For the difference of the two methods of surveying the pupil is desired to compare plate III . with plate V. lastly from 2 to O 4 , and sketch the H 3.
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A Complete Treatise on Practical Land-surveying Thomas Holliday (Land Surveyor.) Vista completa - 1838 |
Términos y frases comunes
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
Pasajes populares
Página 3 - Any two sides of a triangle are together greater than the third side.
Página 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.
Página 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.
Página 276 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Página 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.
Página 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.
Página 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.
Página 235 - To three times the square of the radius of the base, add the square of the height.
Página 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...
Página 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.