 Let this board be so fixed to a vertical staff as to slide up and down freely; and let a small piece of board, about three inches square, be nailed to the lower edge of it, for the purpose of holding a candle. About twenty-five minutes before the time...  Elements of Surveying and Leveling - Page 168by Charles Davies - 1883 - 564 pagesFull view - About this book
 | Charles Davies - Surveying - 1830 - 318 pages
...calculated for the first of July of each year. telescope of the theodolite. Let this board be so fixed to a vertical staff, as to slide up and down freely : and...inches square, be nailed to the lower edge of it. About twenty-five minutes before the time of the greatest eastern or western elongation of the pole-star,... | |
 | Charles Davies - Surveying - 1830 - 390 pages
...centre ; the diameter of telescope of the theodolite. Let this board be so fixed to a vertical stal1', as to slide up and down freely : and let a small piece...inches square, be nailed to the lower edge of it. About twenty-five minutes before the time of the greatest eastern or western elongation of the pole-star,... | |
 | Charles Davies - Navigation - 1837 - 342 pages
...51' 1° 541' 1° 571' 2° 1' 2° 51' to a vertical staff, as to slide up and down freely : and let « small piece of board, about three inches square, be...candle. About twenty-five minutes before the time of the greatesl eastern or western elongation of the pole-star, as shown by the tables of elongations, let... | |
 | Charles Davies - Surveying - 1839 - 376 pages
...1°51£' 1°55' 1°58' 2° 1i' 2° 6' 1846 1°46' l°48i' 1° 51' 1° 54i' 1° 57i' 2° 1' 2° 5i' to a vertical staff, as to slide up and down freely : and...western elongation of the pole-star, as shown by the tables of elongations, let the theodolite be placed at a convenient point and levelled. Let the board... | |
 | Charles Davies - Surveying - 1839 - 376 pages
...l°5li' 1°55' 1°58' 2° 11' 2° 6' 1846 1°46' l°48l' 1° 51' 1° 54V 1° 571' 2° 1' 2° 51' to a vertical staff, as to slide up and down freely : and...western elongation of the pole-star, as shown by the tables of elongations, let the theodolite be placed at a convenient point and levelled. Let the board... | |
 | Charles Davies - Navigation - 1841 - 414 pages
...1°49' l°51f 1°55' 1°58' 2° If 2° 6' 1846 1°46' l°48f 1° 51' 1° 541' 1° 57f 2° 1' 2° 5f to a vertical staff, as to slide up and down freely : and...western elongation of the pole-star, as shown by the tables of elongations, let the theodolite be placed at a convenient point and levelled. Let the board... | |
 | Charles Davies - Navigation - 1854 - 446 pages
...somewhat larger than the diameter of the telescope of the theodolite. Let this board be so fixed to a vertical staff, as to slide up and down freely : and...western elongation of the pole-star, as shown by the tables of elongations, let the theodolite be placed at a convenient point and levelled. Let the board... | |
 | J. H. Hawes - Public lands - 1868 - 248 pages
...1° 56' 2° 00' 1861 1° 411' 1° 43f 1° 461' 1° 49' 1° 521' 1° 552' 1° 59}' inches square, bo nailed to the lower edge of it, for the purpose of...western elongation of the pole-star, as shown by the tables of elongations, let the theodolite he placed at a convenient point and leveled. Let the board... | |
 | J. H. Hawes - Public lands - 1868 - 252 pages
...somewhat larger than the diameter of the telescope of the theodolite. Let this board be so fixed to a vertical staff as to slide up and down freely; and let a small piece of board, about three Year. Lat.32° Azimuth. Lat. 34° Azimnth. Lat. 36° Azimnth. Lat. 3S° Azimnth. Lat. 40° Azimnth... | |
 | INSTRUCTIONS TO THE SURVEYORS GENERAL OF PUBLIC LANDS OF THE UNITED STATES. - 1871 - 106 pages
...somewhat larger than the diameter of the telescope of the theodolite. Let this board be so fixed to a vertical staff as to slide up and down freely; and...eastern or western elongation of the pole-star, as sliown by the tables of elongations, let the theodolite be placed at a convenient point and leveled.... | |
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