 ... to coincide with the vertical hair. Then mark the point directly under the theodolite; the line passing through this point and the staff makes an angle with the true meridian equal to the azimuth of the pole-star. From the table of azimuths, take...  Elements of Surveying: With the Necessary Tables - Page 100by Charles Davies - 1830 - 306 pagesFull view - About this book
 | Charles Davies - Surveying - 1839 - 380 pages
...a staff, with a candle or small lamp upon its upper extremity, be arranged at thirty or forty yards from the theodolite, and in the same vertical plane...true meridian equal to the azimuth of the pole-star. the azimuth. If the elongation were west, the true meridian lies on the east of the line : and, in... | |
 | Charles Davies - Navigation - 1852 - 412 pages
...instrument be not afterwards moved. lamp upon its upper extremity, be arranged at thirty or forty yards from the theodolite, and in the same vertical plane...year and nearest latitude. If the observed elongation was east, the true meridian lies on the west of the line which has been found, and makes with it an... | |
 | Charles Davies - Navigation - 1854 - 446 pages
...a staff, with a candle or small lamp upon its upper extremity, be arranged at thirty or forty yards from the theodolite, and in the same vertical plane...year and nearest latitude. If the observed elongation was east, the true meridian lies on the west of the line which has been found, and makes with it an... | |
 | Charles Davies - Navigation - 1857 - 422 pages
...the vertical limb about its horizontal axis without moving the vernier plate, and aligning the staif to coincide with the vertical hair. Then mark the...year and nearest latitude. If the observed elongation was east, the true meridian lies on the west of the line which has been found, and makes with it an... | |
 | J. H. Hawes - Public lands - 1868 - 252 pages
...a staff, with a candle or small lamp upon its upper extremity, be arranged at thirty or forty yards from the theodolite, and in the same vertical plane...year and nearest latitude. If the observed elongation was east, the true meridian lies on the west of the line which has been found, and makes with it an... | |
 | INSTRUCTIONS TO THE SURVEYORS GENERAL OF PUBLIC LANDS OF THE UNITED STATES. - 1871 - 106 pages
.... 1° 41V 1° 43f' 1° 46V 1°49/ 1° 52V 1° 55f 1° 59V ity, be arranged at thirty or forty yards from the theodolite, and in the same vertical plane...year and nearest latitude. If the observed elongation was east, the true meridian lies on the west of the line which has been found, and makes Avith it an... | |
 | Charles Davies - Surveying - 1871 - 458 pages
...a staff, with a candle or small lamp upon its upper extremity, be arranged at thirty or forty yards from the theodolite, and in the same vertical plane...table of azimuths, take the azimuth corresponding fo the year and nearest latitude. If the observed elongation was east, the true meridian lies on the... | |
 | J. H. Hawes - Public lands - 1873 - 234 pages
...a staff, with a candle or small lamp upon its upper extremity, be arranged at thirty or forty yards from the theodolite, and in the same vertical plane...year and nearest latitude. If the observed elongation was east, the true meridian lies on the west of the line which has been found, and makes with it an... | |
 | Aaron Schuyler - Measurement - 1864 - 506 pages
...staff, and another directly under the instrument, then will the line -determined by the stakes make an angle with the true meridian, equal to the azimuth of the North star. The true meridian will lie west or east of the C!-_,B line of stakes, north of the telescope,... | |
 | United States. General Land Office - Public lands - 1881 - 138 pages
...Then mark the point directly under the theodolite; the line passing through this point and the start', makes an angle with the true meridian equal to the azimuth of the pole star. From the table of azimuths, take the azimuth corresponding to the year and nearest latitude.... | |
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