 | Charles Davies - Navigation - 1837 - 342 pages
...needle. Now, if the elongation, at the time of observation, were west, and the north end of the needle on the west side of the line, the azimuth, plus the...North end of the needle on the west, angle 4° 06' Variation 6° 10' west. 2. Elongation west, azimuth . . 1° 59' North end of the needle on the east,... | |
 | Charles Davies - Surveying - 1839 - 376 pages
...needle. Now, if the elongation, at the time of observation, were west, and the north end of the needle on the west side of the line, the azimuth, plus the...North end of the needle on the west, angle 4° 06' Variation 6° 10' west. 2. Elongation west, azimuth . . 1° 59' North end of the needle on the east,... | |
 | Charles Davies - Surveying - 1839 - 376 pages
...needle. Now, if the elongation, at the time of observation, were west, and the north end of the needle on the west side of the line, the azimuth, plus the...North end of the needle on the west, angle 4° 06' Variation 6° 10' west. 2. Elongation west, azimuth . . 1° 59' North end of the needle on the east,... | |
 | J. H. Hawes - Public lands - 1868 - 252 pages
...plumbline, and the star are brought into the same range. Then if the star depart from the plumb-liue, move the compasssight east or west along the timber,...North end of the needle on the west, angle ... 4° 06' Variation ........... 6° 10' west. 2. Elongation west, azimuth 1° 59' North end of the needle on... | |
 | J. H. Hawes - Public lands - 1868 - 248 pages
...recede from it in the direction contrary to its motion before it became stationary. Let the compasseight be now fastened to the horizontal plank. During this...North end of the needle on the west, angle ... 4° 06' Variation ..... .... 6° 10' west. 2. Elongation west, azimuth 1° 59' North end of the needle on the... | |
 | INSTRUCTIONS TO THE SURVEYORS GENERAL OF PUBLIC LANDS OF THE UNITED STATES. - 1871 - 106 pages
...The line so determined makes, with the true meridian, an angle equal to the azimuth of the pole star; and from this line the variation of the needle is...North end of the needle on the west, angle 4° 06' Variation . . 6° 10' west. 2. Elongation west, azimuth 1° 59' North end, of the needle on the east,... | |
 | J. H. Hawes - Public lands - 1873 - 234 pages
...thirty or forty yards from the plumb-line, and in the same direction with it and the compass- sight. The line so determined makes, with the true meridian,...North end of the needle on the west, angle ... 4° 06' Variation 6° 10' west. 2. Elongation west, azimuth 1° 59' North end of the needle on the east, angle... | |
 | United States. General Land Office - Public lands - 1881 - 138 pages
...was west, and the north end of the needle is on the west side of the line, the azimuth, plus the an; shown by the needle, is the true variation. But should...North end of the needle on the west, angle 4° 06' Variation ., 6° 10' west. 2. Elongation west, azimuth Ie 59' North end of the needle on the east,... | |
 | United States. Bureau of Land Management - Surveying - 1890 - 192 pages
...true variation. But should the north end of the needle be found on the east side of the line, Шеы elongation being west, the difference between the...variation, and the reverse when the elongation is east. EXAMPLES. 1. Elongation west, azimnth 1° 35' North end of the needle on the west, angle 4° 35' The... | |
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Now, if the elongation, at the time of observation, was west, and the north end of the needle is on the west side of the line, the azimuth, plus the angle shown by the needle, is the true variation. But should the north end of the needle be found on the... 