Edinburgh
Found in 40 Collections and/or Records:
Letters from observatories, 1852 - 1858
Letters from observatories, 1875 - 1878
Letters from observatories, 1878 - 1879
Mark Watt on improvements in the construction of compasses, 1827
Correspondence regarding the effect of magnetic variation on the mariner's compass, the use of magnetic variation to establish longitude and the cause of magnetic variation.
Narrative of observations for ascertaining the longitude by a star, 1814-08-24 - 1814-10-14
Preceded by a copy of the same, and a cover note from Nicholas Vansittart to Captain Thomas Hurd.
Observations of transit of Venus, 1765 - 1769
Errors of tabular places of Venus, 1765 and 1769, and a letter from Maskelyne requesting the observations of the transit of Venus as observed from Edinburgh, 20 June 1769.
Papers on determining galvanic longitudes, 1852 - 1854
Papers on meteorology, 1829 - 1848
Papers on the galvanic longitude of Edinburgh, 1855 - 1858
Petition from George Douglas, 1786
Printed pamphlet on two easy methods of finding the longitude, 1787-07
On finding longitude by eclipses of Jupiter's satellites and by the moon's meridian passage, and on a quadrant and other instruments.
Printed paper on two easy methods of finding the longitude at sea, 1787-07 - 1787-08
With a handwritten supplement by Mitchel; see also [RGO 14/38: 129-132]. The methods proposed are by the eclipse of Jupiter's satellites and by observing the moon's passage over the meridian using his new improved quadrant.
Printed paper on two easy methods of finding the longitude at sea, 1787-06 - 1788-05
With a handwritten supplement by Mitchel; see also [RGO 14/38: 118-121].
Proposal from George Douglas, 1795-05-08
Marked by Maskelyne as unworthy of the Board's attention.
William Scoresby on experiments with a dipping needle at Liverpool and Greenland, 1823
Correspondence regarding the effect of magnetic variation on the mariner's compass, the use of magnetic variation to establish longitude and the cause of magnetic variation.