The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this Art |
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Page 249
... Dist . N. S. E. W. MD . IN . Area . js . Areas . t N 75.00 E 54.8 14.2 52.9 235.3 288.2 3341.26 2 N 20.30 E 41.2 38.6 14.4 302.6 11680.36 317.0 East . 3 . 64.8 64.8 381.8 446.6 4 S 33.30 W 14.12 368.7 117.7 77.9 290.8 43395-99 5 S 76.00 ...
... Dist . N. S. E. W. MD . IN . Area . js . Areas . t N 75.00 E 54.8 14.2 52.9 235.3 288.2 3341.26 2 N 20.30 E 41.2 38.6 14.4 302.6 11680.36 317.0 East . 3 . 64.8 64.8 381.8 446.6 4 S 33.30 W 14.12 368.7 117.7 77.9 290.8 43395-99 5 S 76.00 ...
Page 254
... Dist . R.han . Off - set Ch.L. Ch.L. Ch.L. 318 Int . to a tower 1358 1.12 4.25 3.40 7.40 1.25 13.00 22.12 232 Int . for ditto . 2 2973 4.10 1.20 10.25 1.15 13.10 0.45 15.00 21.21 3 172 5.45 14 1200 13.25 15 1250 3.36 155 Int . for bound ...
... Dist . R.han . Off - set Ch.L. Ch.L. Ch.L. 318 Int . to a tower 1358 1.12 4.25 3.40 7.40 1.25 13.00 22.12 232 Int . for ditto . 2 2973 4.10 1.20 10.25 1.15 13.10 0.45 15.00 21.21 3 172 5.45 14 1200 13.25 15 1250 3.36 155 Int . for bound ...
Page 273
... dist . & Then , Area , 6522.1 per.109.1 109.1 122.9 123.9 Then 6522.1 : 115 : 3470.6 : 61.19 ICDI : CD :: ICNI : CN as which determines the point Win CD . ICNI . Per . N. S L. W. Th . 18 Sec . 1 IC las before 109.1 17.7 CNS 27 E. 61.2 ...
... dist . & Then , Area , 6522.1 per.109.1 109.1 122.9 123.9 Then 6522.1 : 115 : 3470.6 : 61.19 ICDI : CD :: ICNI : CN as which determines the point Win CD . ICNI . Per . N. S L. W. Th . 18 Sec . 1 IC las before 109.1 17.7 CNS 27 E. 61.2 ...
Page 294
... Dist . Dist . Ascent . or desc . 738 705 218.9 684 635 253.4 976 947 236.1 930 911 185.4 620 585 204.0 3948 3783 217.6 Dif . De- Lat . part . 131 692 164 613 602 730 75 200 908 549 622 3492 Desc . IN . E. As S. Bear . 79 ° 45 ' Is to ...
... Dist . Dist . Ascent . or desc . 738 705 218.9 684 635 253.4 976 947 236.1 930 911 185.4 620 585 204.0 3948 3783 217.6 Dif . De- Lat . part . 131 692 164 613 602 730 75 200 908 549 622 3492 Desc . IN . E. As S. Bear . 79 ° 45 ' Is to ...
Page 318
... Dist . -40 45 23 N. Reduced Dec. Zenith Dist . = 39 57 53 N. = 17 30 34 N. Reduced Dec. 4 15 29 S. Latitude . = 58 15 57 N. Latitude . 35 42 24N . 4th . October 11th , 1812 , in long 3d . July 24th , 1811 , in long . 62o 30 W. the Mer ...
... Dist . -40 45 23 N. Reduced Dec. Zenith Dist . = 39 57 53 N. = 17 30 34 N. Reduced Dec. 4 15 29 S. Latitude . = 58 15 57 N. Latitude . 35 42 24N . 4th . October 11th , 1812 , in long 3d . July 24th , 1811 , in long . 62o 30 W. the Mer ...
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Common terms and phrases
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
Popular passages
Page 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.
Page 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.
Page 197 - RULE. From half the sum of the three sides subtract each side severally.
Page 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.
Page 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.