BulletinU.S. Government Printing Office, 1904 |
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Allegany County Altitude Anne Arundel County Augusta County Baltimore and Ohio Baltimore County Big Sandy River branch of Guyandot Braxton County Carroll County Chesapeake and Ohio county seat declination in 1900 diff Dorchester County Elevation Elk River Fayette County feet feldspar Fork of Big Garrett County Gauley River Gilmer County Greenbrier County Guyandot River Harford County James River Kanawha County Kanawha River Kent County Knob Latitude longi Mary County McDowell County mountain Nicholas County Norfolk and Western Ohio Railroad Ohio Railway Ohio River Okanogan Pocahontas County Population post village Potomac River quartz Raleigh County Randolph County Ridge Roanoke River Rockingham County rocks Skagit small branch small left-hand branch small left-hand tributary small right-hand branch small right-hand tributary small tributary Southern Railway summit tributary to Elk tributary to Guyandot tributary to James tributary to Kanawha tude Tug Fork Valley village in Baltimore village in Prince Western Railway Wyoming County
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Сторінка 24 - In fig. 2 the full vertical line represents a portion of the meridian passing through the zenith Z (the point directly overhead), and intersecting the northern horizon at the north point N, from which, for surveying purposes, the azimuths of Polaris i I i 4 /S v sT i i Hainan L
Сторінка 291 - This is a most generally useful stadia table for rods residing' 1 foot to the 100 feet and with angles up to 30°. The values of other measures than those given in the table are obtained by multiplying the quantities under the proper vertical angle by stadia readings in hundreds of units. The quantity representing the focal distance is very small and is given at the bottom of each page for focal lengths between threefourths and li feet and is represented as a constant equal to c.
Сторінка 21 - ... fourth point, P, it is required to determine the position of P. Set up the theodolite at P and measure the two angles subtended by any two of the given sides. This problem is of use in cases where, the regular triangulation having been completed, additional points are required for the topographic survey, or are needed for special service. The angles should be carefully measured, and in the computations the logarithms should be carried to seven places of decimals. Three cases of its application...
Сторінка 5 - Dictionary of altitudes in United States, by Henry Gannett. 1884. 325 pp. (Out of stock; see Bulletin 100.) 6. Elevations in Dominion of Canada, by JW Spencer. 1884. 43 pp. (Out of stock.) 13. Boundaries of United States and of the several States and Territories, with historical sketch of territorial changes, by Henry Gannett.
Сторінка 27 - ... to 24 hours. Consequently an astronomical time less than twelve hours refers to the same civil day. whereas an astronomical time greater than twelve ho.urs refers to the morning of the next civil day. It will be noticed that for the tabular year two eastern elongations occur on January 12 and two western elongations on July 12. There are also two upper culminations on April 12 and two lower culminations on October 12. The lower culmination either follows or precedes the upper culmination by 11
Сторінка 5 - Baker. 1900. 78 pp., 1 pi. 175. Triangulation and spirit leveling in Indian Territory, by CH Fitch. 1900. 141 pp., 1 pi. 181. Results of primary triangulation and primary traverse, fiscal year 1900-1901, by HM Wilson, JH Renshawe, EM Douglas, and RU Goode.
Сторінка 5 - ... 70. Report on astronomical work of 1889 and 1890, by RS Woodward. 1890. 79 pp. 72. Altitudes between Lake Superior and Rocky Mountains, by Warren Uphain.
Сторінка 27 - ADD to the tabular quantities four minutes for every degree of longitude the place is west of the standard meridian, and SUBTRACT when the place is east of .the standard meridian.