The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this ArtE. Duyckinck, 1811 - 508 من الصفحات |
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الصفحة
... land Semi - diameter of the Sun Transit of Pole Star ibid 176 263 Difference of Altitude of 7. Method of Dividing Pole Star and Pole 177 Land 271 Sun's Declination 178 8. Maritime Surveying 281 Reduction Table 182 PART I. Page . PART II ...
... land Semi - diameter of the Sun Transit of Pole Star ibid 176 263 Difference of Altitude of 7. Method of Dividing Pole Star and Pole 177 Land 271 Sun's Declination 178 8. Maritime Surveying 281 Reduction Table 182 PART I. Page . PART II ...
الصفحة
... land Semi - diameter of the Sun Transit of Pole Star ibid 176 263 Difference of Altitude of 7. Method of Dividing Land 8. Maritime Surveying 281 Pole Star and Pole 177 271 Sun's Declination 178 Reduction Table 182.
... land Semi - diameter of the Sun Transit of Pole Star ibid 176 263 Difference of Altitude of 7. Method of Dividing Land 8. Maritime Surveying 281 Pole Star and Pole 177 271 Sun's Declination 178 Reduction Table 182.
الصفحة 1
... land , and cé delineating its boundaries on a map . The Surveyor , in the practice of this art , directs his attention , at first , to the tracing and measur- ing of lines ; secondly , to the position of these lines in respect to each ...
... land , and cé delineating its boundaries on a map . The Surveyor , in the practice of this art , directs his attention , at first , to the tracing and measur- ing of lines ; secondly , to the position of these lines in respect to each ...
الصفحة 14
... answer ; -in the same denomination with the third term . EXAMPLES . If 3 acres 3 roods of land can be purchased for 93 dollars 60 cts . how much will 15 acres 1 rood cost at that rate ? 3 acs . 3 rds . 15 acs . 1 14 DECIMAL FRACTIONS .
... answer ; -in the same denomination with the third term . EXAMPLES . If 3 acres 3 roods of land can be purchased for 93 dollars 60 cts . how much will 15 acres 1 rood cost at that rate ? 3 acs . 3 rds . 15 acs . 1 14 DECIMAL FRACTIONS .
الصفحة 134
... woodland measure , which is 6 yards ; that of church - land measure , which is 7 yards , and the forest measure perch , which is 8 yards . For the more ready reckoning the links of a four ( 134 ) PART II The Chain PART II The Chain.
... woodland measure , which is 6 yards ; that of church - land measure , which is 7 yards , and the forest measure perch , which is 8 yards . For the more ready reckoning the links of a four ( 134 ) PART II The Chain PART II The Chain.
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عبارات ومصطلحات مألوفة
acres altitude Answer arch azimuth base bearing blank line centre chains and links chord circle circumferentor Co-sec Co-tang column compasses contained decimal difference distance line divided divisions draw east Ecliptic edge feet field-book figures fore four-pole chains geom given number half the sum Horizon glass hypothenuse inches instrument Lat Dep Lat latitude length logarithm measure meridian distance multiplied natural co-sine natural sine needle Nonius number of degrees object observed off-sets opposite parallel parallelogram pegs perches perpendicular plane pole pole star Portmarnock PROB protractor Quadrant quotient radius right angles right line scale of equal SCHOLIUM screw Secant sect Sextant side sights square station stationary distance subtract Sun's survey taken Tang tangent theo theodolite trapezium triangle ABC trigonometry two-pole chains vane versed sine vulgar fraction whence
مقاطع مشهورة
الصفحة 38 - The angle in a semicircle is a right angle ; the angle in a segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than a right angle.
الصفحة 25 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, &c.
الصفحة 197 - RULE. From half the sum of the three sides subtract each side severally.
الصفحة 106 - C' (89) (90) (91) (92) (93) 112. In any plane triangle, the sum of any two sides is to their difference as the tangent of half the sum of the opposite angles is to the tangent of half their difference.
الصفحة 27 - The VERSED SINE of an arc is that part of the diameter which is between the sine and the arc. Thus BA is the versed sine of the arc AG.