 | Charles Davies - Surveying - 1830 - 390 pages
...being 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...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,... | |
 | J. H. Hawes - Public lands - 1868 - 248 pages
...being 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° Azimuth. Lat. 36° Azimuth. Lat. 38° Azimuth. Lat. 40° Azimuth... | |
 | J. H. Hawes - Public lands - 1868 - 252 pages
...being 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
...being 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;...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.... | |
 | Charles Davies - Leveling - 1871 - 448 pages
...1° 38$' 1°41' 1°44' 1° 47}' 1° 50}' the telescope of the theodolite. Let this board be so fixed to a vertical staff, as to slide up and down freely:...the lower edge of it, for the purpose of holding a caudle. About twenty-five minutes before the time of the greatest eastern or western elongation of... | |
 | J. H. Hawes - Public lands - 1873 - 234 pages
...being 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° Azimuth. Lat. 36° Azimuth. Lat. 38° Azimuth. Lat. 40° Azimuth... | |
 | Jacob Bennett Stone - Geomagnetism - 1878 - 156 pages
...being 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...a small piece of board, about three inches square, 185 185 be nailed to the lower edge of it, for the purpose of holding a candle. About twenty-five minutes... | |
 | United States. General Land Office - Public lands - 1881 - 138 pages
...being 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...the theodolite be placed at a convenient point and leveled. Let the board be placed about one foot in front of the theodolite, a lamp or candle placed... | |
 | Charles Davies - Surveying - 1883 - 578 pages
...being somewhat larger than the diameter of the telescope of the transit. Let this board be so fixed to a vertical staff as to slide up and down freely...western elongation of the pole-star, as shown by the table of elongations (see Art. 164), let the transit be placed at a convenient point and leveled. Let... | |
 | Charles Davies - Surveying - 1883 - 614 pages
...somewhat larger than the diameter of the telescope of the transit. Let this board be so fixed to » vertical staff as to slide up and down freely ; and...western elongation of the pole-star, as shown by the table of elongations (see Art. 164), let the transit be placed at a convenient point and leveled. Let... | |
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Take a board, of about one foot square, paste white paper upon it, and perforate it through the center; the diameter of the hole being somewhat larger than the diameter of the telescope of the theodolite. Let this board be so fixed to a vertical staff"... 
