Surveyor's tables, being the tables from the Manual of land surveying, by F. Hodgman

Page 55

5442.. 0 For one revolution of Gradienter Screw. used in finding (1' and d. Page 9.9.- ‘ , 41° ----- 46° 46° ------ 51° Angle. Secant. Angle Secant. Angle Secant Angle Secant Elevation. 1.32501 42 10 20 30 40 50 43 10 20 30 40 50 ‘. 44. 10 20 30 40 50 45 L 10 20 30 40 50 1 . 32838 1 . 33177 1 . 33519 1.33864 1.34212 1 . 34563 1 .34917 1.35274 1 . 35634 1.35997 1.36363 1.36733 1 . 37105 1.37481 1 . 37860 1.38242 1.38628 1.39016 1 . 39409 1.39804 1.40203 1.40606 ' 1.41012 1.41421 1 .41835 1 . 42251 1 . 42670 1.43096 ~ 1.43524 46 10 20 30 . 40 50 1 .43956 10 20 30 40 50 47 10 20 30 40 50 48 10 20 30 40 50 49 .10 20 30 40 50 50 10 20 30 40 50 51 1 . 44391 1 .44831 1.45274 1.45721 , 1.46173 1 . 46628 1 .47087 1.47551 1 . 48019 1.48491 1.48967 1.49448 1' . 49933 1.50422 1 . 50916 1. 51415 1.51918' 1.52425 1 . 52938 1.53455 1.53977 1.54504 1.55036 1.55572 1 . 56114 1 . 56661 1 . 57213 1.57771 1.58333 JAN. 1. 1.58902 10 20 30 . 40 50 56 1 . 59475 1 . 60054 1 . 60639 1.61229 1.61825 1 . 62427 1 . 63035 1 .63648 1 . 64268 1.64894 1.65526 1.66164 1 . 66809 1.67460 1 . 68117 1 .68782 1.69452 1.70130 1 . 70815 1.71506 1.72205 1.72911 1.73624 1.74345 1 . 75073 1 . 75808 1 . 76552 1.77303 1.78062 52 10 20 30 40 50 53 10 20 30 40 50 54 10 20 30 40 50 55 10 20 30 40 50 Multipliers of r. e. Inc. Hor. Dist. Dist. 1 .78829 10 20 30 40 50 57 10 20 30 40 _ 50 58 10 20 30 40 50 59 10 20 30 40 50 60 10 20 30 40 50 TABLE VIII. Elevat'n. 1.79604 1 . 80388 1.81180 1.81981 1.82790 1 . 83608 1 . 84435 1 . 85271 1 . 86116 1.86990 1.87834 1.88708 1 . 89591 1.90485 1 . 91388 1.92302 1.93226 1.94160 ‘ 1 . 95106 1.96062 1.97029 1.98008 1.98998 2.00000 » 2 . 01014 2 . 02039 2.03077 2.04128 2.05191 Inc. Hor. Dist. Dist. e. r'a I 2 3 4 5 6 7 8 9 10 10 11 ‘11 12 12 13 13 00 30 30 30 30 Inc. Hpr. Dist. Dist. 6. 99.97 99.90 99.81 99.69 99.53 99.35 99.13 98.89 98.61 98.31 98214 97.97 97.79 97.61 97.41 97.21 97.00 9.95 39.84 99.67 99.44 99.15 98.80 98.39 97.92 97.39 96.81 96.50 96.17 95.83 95.47 95.10 94.72 94.22 14 14 15 15 16 16 '17 17 18 18 19 1920 20 21 21 22 o / o - 30 30 30' 30 30 30 30 30 96.79 96.56 96.33 96.09 95.85 95.60 95.34 95.07 94.80 94.52 94.23 93.93 93.63 93.32 93.00 92.68 92.34 93.91 93.49 93.05 92.59 92.13 91.66 91.17 90.67 90.15 89.63 89.09 88.54 87.97 87.41 86.82 86.23 85.61 22 23 23 24 24 25 25 26 26 27 27 28 28 29 29 30 30 I 30 92.01 85.01 91.66 84.37 91.31.83.73 30 90.95 83.08 .58 82942 30 . 90.21.8135 ; 89.83 81.08 30 89.44 80.39 89.05 79.69 30 88.65 78.99 88.24 78.27 30 87.83 77.55 . 87.40 76.81 30 86.98 76.07 86.54 75.32 30 86.10 74.57 85.66 73.81 30 . H; I 41 Multipliers _ Multipliers of 1'. Elevation. of r. JAN. 1. TABLE X. ANGLES OF ELEVATION, AZIMUTES 0F POLARIS AT EXTREME ELONGATIONS. Lat. N. 1896 O 25 O I 1897 O I 1898 O ' 1899 O I 1900 0 I 1901 O I 1902 O I 1903 O I 1904 0 I 1905 0 Corresponding to numbers of Revolution of the Gradienter Screw. I 122.5 1 22.2 1 21.81215 1 21.11 20.8120.5120.1119.8 1 19.4 26 23.2 22.9 22.5 22.2 21.8 21.5 21.1 20.8 20.4 20.1 27 23.9 23.6 23.2 22.9 22.5 22.2 21.8 21.5 21.1 20.8 28 24.7 24.4 24.0 23.6 23.3 22.9 2.6 22.2 21.9 21.5 29 30 31 32 33 34. 35 36 37 . 3% ' ' 40. 41 42 43 25.5 26.4 27.3 28.2 29.2 30.2 31.3 32.5 33.7 34.9 36.2 37.6 39.1 40.6 42.3 25.2 26.0 26.9 27.8 28.8 29.8 30.9 32.1 33.3 34.5 35.8 37.2 38.7 40.2 41.8 24.8 25.6 26.5 27.5 28.4 29.5 30.5 31.7 32.9 34.1 85 4 36.8 38.3 39.8 41.4 24.4 25.3 26.2 27.1 28.1 29.1 30.2 31.3 32.5 33.7 35.0 36.4 37.9 39.4 41.0 24.1 24.9 25.8 26.7 27.7 28.7 29.8 30.9 32.1 33.3 34.6 36.01 37.4 39.0 40.6 23.7 24.6 25.4 26.4 27.3 28.3 29.4 30 5 31.7 32.9 34.2 35.6 87 0 38.5 40.1 23.4 24.2 25.1 26.0 26.9 27.2 29.0 80.1 31.3 32.5 33.8 35.2 36.6 38.1 39.7 23.0 23.8 24.7 25.6 26.6 27.6 28.6 29.7 30.9 32.1 33.4 34.8 36.2 37.7 39.3 22.6 23.5 24.3 25.2 26.2 27.2 28.2 29.3 30.5 31.7 33.0 34.4 35.8 37.3 38.8 22.3 23 1 24.0 24.9 25.8 26.8 27.8 29.0 30.1 31.3 32.6 34.0 35.4 36.9 38.4 44 44.0 43.5 43.1 42.7 42.2 41.8 41.4 40.9 40.5 40.1 44.4 46.3 48.3 50.4 52.6 54.9 1 443.8 45. 47.8 49.9 521 54.4 1 43.6 45.4 47.4 49.4 51.6 53.9 1 43.1 42.7 42.2 41.8 45.0 44.5 44.0 43.6 46.9 46.5 46.0 45.5 49.0 48.5 48.0 47.6 51.2 50.7 50.2 49.7 53.4158.0152.5 1.52.0 45 46 _ 47 48' ‘ .49 . 50 . 1 45.8 45.3 44.9 47.7 47.2 46.8 49.7 49.2 «18.8 51.8 . 51.3 50.8 54.0 53.5 53.1 56.4155.9155.4 1 . Screw. Rev. Div. 0 " o 1 2 3 4 Angle. ° ' " 0 00 21 0 41 1 02 1 23 Screw. Angle. Screw. Rev. Div. Rev. Div. ° ' " 10 20 30 40 _ 0 3 6 10 13 26 53 19 45 1 2 3 4 0 00 Angle. ° ' 0 1 1 2 34 08 43 17 " 23‘ 45' 06 26 5 1 4'3 50 17 11 5 2 51 45 6 2 04 60 20 38 6 3 7 2 24 7o 24 04 7 4 00 15.1 8 9 10 _ 2 45 3 06 3 26 80 90 00 27 30 30 56 34 23 8 9 10 0 1 0 55' 00 4 5 5 26 01$ 34 26 _ 08 34. 42 38