 | Charles Davies - Surveying - 1830 - 318 pages
...time the star attains its greatest elongation, it will appear to coincide with the vertical spider's line for some time, and then leave it, in the direction...elongation, the telescope must be continually directed, by means of the tangent screw of the vernier plate ; and when the star has attained its greatest elongation,... | |
 | Charles Davies - Navigation - 1854 - 446 pages
...time the star attains its greatest elongation, it will appear to coincide with the vertical spider's line for some time, and then leave it, in the direction contrary to ite former motion. As the star moves towards the point of greatest elongation, the telescope must be... | |
 | Charles Davies - Navigation - 1866 - 426 pages
...time the star attains its greatest elongation, it will appear to coincide with the vertical spider's line for some time, and then leave it, in the direction contrary to ils former motion. As the star moves towards the point of greatest elongation, the telescope must be... | |
 | J. H. Hawes - Public lands - 1868 - 248 pages
...some time, and then leave it, in the direction contrary to its former motion. As the star moves toward the point of greatest elongation, the telescope must...great care should be taken that the instrument be not afterward moved. Now, if it be not convenient to leave the instrument in its place until daylight,... | |
 | J. H. Hawes - Public lands - 1868 - 252 pages
...time the star attains its greatest elongation, it will appear to coincide with the vertical spider's line for some time, and then leave it, in the direction contrary to its former motion. As the star moves toward the point of greatest elongation, the telescope must be continually directed to it, by means... | |
 | INSTRUCTIONS TO THE SURVEYORS GENERAL OF PUBLIC LANDS OF THE UNITED STATES. - 1871 - 106 pages
...time the star attains its greatest elongation, it will appear to coincide with the vertical spider's line for some time, and then leave it, in the direction contrary to its former motion. As the star moves toward the point of greatest elongation, the telescope must be continually directed to it, by means... | |
 | Charles Davies - Leveling - 1871 - 448 pages
...time the star attains its greatest elongation, it will appear to coincide with the vertical spider's line for some time, and then leave it, in the direction contrary to its former motion. As the star moves toward the point of greatest elongation, the telescope must be continually directed to it, by means... | |
 | J. H. Hawes - Public lands - 1873 - 234 pages
...time the star attains its greatest elongation, it will appear to coincide with the vertical spider's line for some time, and then leave it, in the direction contrary to its former motion. As the star moves toward the point of greatest elongation, the telescope must be continually directed to it, by means... | |
 | United States. General Land Office - Public lands - 1881 - 138 pages
...time the star attains its greatest elongation, it will appear to coincide with the vertical spider's line for some time, and then leave it, in the direction contrary to its former motion. As the star moves toward the point of greatest elongation, the telescope must be continually directed to it, by means... | |
 | Charles Davies - Surveying - 1883 - 614 pages
...time the star attains its greatest elongation, it will appear to coincide with the vertical cross-wire for some time, and then leave it in the direction contrary to its former motion. attained its greatest elongation, great care should be taken that the instrument be not afterward moved.... | |
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... the east, and the reverse when the elongation is west. At the time the star attains its greatest elongation, it will appear to coincide with the vertical spider's line for some time, and then leave it, in the direction contrary to its former motion.... 
