Report Upon the Determination of the Astronomical Co-ordinates of the Primary Stations at Cheyenne, Wyoming Territory, and Colorado Springs, Colorado Territory, Made During the Years 1872 and 1873: Geographical and Geological Explorations and Surveys West of the One Hundredth Meridian, First Lieut. George M. Wheeler, Corps of Engineers, in Charge. Dr. F. Kampf and J. H. Clark, Civilian Astronomical AssistantsU.S. Government Printing Office, 1874 - 82 pages |
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Page 13
A cylinder is attached , covered with paper , and is made to revolve once a minute . ... Removing the paper from the cylinder , both the minutes and the seconds will be found , if the instrument is working properly , recorded in ...
A cylinder is attached , covered with paper , and is made to revolve once a minute . ... Removing the paper from the cylinder , both the minutes and the seconds will be found , if the instrument is working properly , recorded in ...
Page 51
Another circle was affixed to the upper part of the tube , divided also also to twenty minutes , and having in the center a level used in latitude - observations for determining the change in the ...
Another circle was affixed to the upper part of the tube , divided also also to twenty minutes , and having in the center a level used in latitude - observations for determining the change in the ...
Page 68
By measuring the differences where I find the full minute , I develop the fact that the Colorado Springs chronometer breaks 0.110 later than the Salt Lake break ; therefore the mean of the signals sent from Salt Lake and received on the ...
By measuring the differences where I find the full minute , I develop the fact that the Colorado Springs chronometer breaks 0.110 later than the Salt Lake break ; therefore the mean of the signals sent from Salt Lake and received on the ...
Page 81
In the transmission of signals the record is to be made upon the chronograph or register at the two places over a space of five minutes in time , the connecting or Salt Lake station sending for the first five minutes and the distant ...
In the transmission of signals the record is to be made upon the chronograph or register at the two places over a space of five minutes in time , the connecting or Salt Lake station sending for the first five minutes and the distant ...
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Common terms and phrases
61 Cygni 9 Draconis Adopted Aquarii Aquilæ astronomical August azimuth Capricorni Cephei Changed charge Cheyenne chron chronograph chronom chronometer circuit Clamp clear Cloudy Colo Colorado Springs Colorado Springs chronometer COLORADO TERRITORY connection Corrections Cygni Date Description Determination difference Draconis Engineers eter exchange final result Groom heavy Herculis hour July 30 late Latitude LATITUDE-OBSERVATIONS-Continued Level longitude Lyræ Mean Mean at 24h Mean for 17h Meridian Micrometer star minutes Name of Star nights Normal Equations observations Observations for Latitude.-Station October October 18 Ophiuchi pair Pegasi Piscium places probable error rain reading received record REDUCTION Remarks Sagittarii Salt Lake chron SALT LAKE CITY SALT LAKE OBSERVATORY shows Springs chron station SURVEYS TABLES OF TIME-REDUCTIONS TIME-REDUCTIONS AT RECEIVING-STATION-Continued UNIFORM TABLES United Ursa UTAH TERRITORY values Washington Western wind wires Wyoming Territory
Popular passages
Page 53 - Ocean, the first thing which strikes us is, that, the north-east and south-east monsoons, which are found the one on the north and the other on...
Page 5 - Printing-Office, and that fifteen hundred copies be furnished on requisition from this Office. Very respectfully, your obedient servant, AA HUMPHREYS, Brigadier-Oeneral and Chief of Engineers.
Bibliographic information
| Title | Report Upon the Determination of the Astronomical Co-ordinates of the Primary Stations at Cheyenne, Wyoming Territory, and Colorado Springs, Colorado Territory, Made During the Years 1872 and 1873: Geographical and Geological Explorations and Surveys West of the One Hundredth Meridian, First ... |
| Author | Geographical Surveys West of the 100th Meridian (U.S.) |
| Publisher | U.S. Government Printing Office, 1874 |
| Original from | Harvard University |
| Digitized | 20 Nov 2007 |
| Length | 82 pages |
| Export Citation | BiBTeX EndNote RefMan |