 | Royal Society (Great Britain) - 1803 - 606 pages
...longest meridional arc in Britain, free from any apparent obstruction. And I was led to select Dun nose for one of its extremities, as observations made there,...our former papers, if found necessary. By fixing on Dun nose, I had also the means of ascertaining the distance of the Royal Observatory from the northern... | |
 | 1804 - 572 pages
...so circumstanced ; as, possibly, no spot fixed on for a place of observation, could be supposed nee from the effects of the unequal attraction in the...Royal Observatory from the northern or southern end of my line, and, consequently, of connecting it with the parallels of Dunkirk and Paris. ' Dunnose being... | |
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... attend the placing of the sector at intermediate stations; as the arc would be found running, almost every where, through a country abounding with hills, considerable both in magnitude and number. • Under this consideration, I determined to measure... 