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Captain Vancouver's Longitudes – 1792

Published online by Cambridge University Press:  21 October 2009

Nicholas A. Doe
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Extract

Captain George Vancouver's survey of the North Pacific coast of America has been characterized as being among the most distinguished work of its kind ever done. For three summers, he and his men worked from dawn to dusk, exploring the many inlets of the coastal mountains, any one of which, according to the theoretical geographers of the time, might have provided a long-sought-for passage to the Atlantic Ocean. Vancouver returned to England in poor health but, with the help of his brother John, he managed to complete his charts and most of the book describing his voyage before he died in 1798. He was not popular with the British Establishment and, after his death, all of his notes and personal papers were lost, as were the logs and journals of several of his officers.

Keywords

1. History.2. Errors and accuracy.3. Lunar distances.
Type
Research Article
Information
The Journal of Navigation , Volume 48 , Issue 3 , September 1995 , pp. 374 - 388
Copyright
Copyright © The Royal Institute of Navigation 1995

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References

REFERENCES AND NOTES

1Naish, John. (1992). The health of Vancouver and his men. Vancouver Conference on Exploration and Discovery, Simon Fraser University, Vancouver, British Columbia.Google Scholar
2Lamb, W. Kaye, ed. (1984). A Voyage of Discovery to the North Pacific Ocean and Round the World 1791–1795 by George Vancouver. Hakluyt Society Edition.Google Scholar
3 Many books and papers have been published on the history of navigation techniques. Recommended are: Pretze, C. L. Jr., ed. (1948). The Evolution of Celestial Navigation. Ideal Series 26. Hearst Magazines, N.Y.; Cotter, C. H.; (1968). A History of Nautical Astronomy, and Taylor, E. G. R. (1956, 1971). The Haven-Finding Art. Hollis & Carter, London.Google Scholar
4Davies, Alun. (1993). Chronometers of the explorers of the late eighteenth and early nineteenth centuries: Vancouver's chronometers. In Fisher, R. & Johnston, H., ed. From Maps to Metaphors. University of British Columbia Press, pp. 70–84, 305–311.Google Scholar
5Doe, N. A. (1993). Where was Nootka 1792? An explanation of Captain Vancouver's longitude error. Journal of the Canadian Hydrographic Association, Lighthouse, no. 47, pp. 15–18.Google Scholar
6Maskelyne, Nevil, ed. (1781). Tables Requisite to be used with the Nautical Ephemeris for finding Latitude and Longitude. 2nd Edition. Commissioners of Longitude, London. Extracts and a commentary are in Sadler, D. H. (1968), Man is not lost. H.M. Stationery Office, London.Google Scholar
7 This section is about computational technique rather than measurement technique. For an authoritative review of the latter see David, Andrew (1993), Vancouver's survey methods and surveys. In From Maps to Metaphors, Tables Requisite to be used with the Nautical Ephemeris for finding Latitude and Longitude, pp. 51–69, 291–293, 303–305.Google Scholar
8 This section is about computational technique rather than measurement technique. For an authoritative review of the latter see David, Andrew (1993), Vancouver's survey methods and surveys. In From Maps to Metaphors, Tables Requisite to be used with the Nautical Ephemeris for finding Latitude and Longitude, p. 531.Google Scholar
9 This section is about computational technique rather than measurement technique. For an authoritative review of the latter see David, Andrew (1993), Vancouver's survey methods and surveys. In From Maps to Metaphors, Tables Requisite to be used with the Nautical Ephemeris for finding Latitude and Longitude, p. 485.Google Scholar
10Doe, N. A. (1994). Comments on the accuracy of late 18th-century sextants (unpublished paper). Sadler D. H. (1976). Lunar Distance and the Nautical Almanac. Vistas in Astronomy. 20, pp. 113–121.Google Scholar
11Doe, N. A. (1994). Comments on the accuracy of late 18th-century sextants (unpublished paper). Sadler D. H. (1976). Lunar Distance and the Nautical Almanac. Vistas in Astronomy. 20, p. 484.Google Scholar
12Doe, N. A. (1994). Vancouver's assessment of Kendall's chronometer K3 in 1791/1792. Journal of the Canadian Hydrographic Association. Lighthouse no. 50, pp. 15–26.Google Scholar
13Cook, James. (1769). Chart of the Island Otaheite. Reproduced in Wharton, W. J. L., ed. (1893). Captain Cook's Journal During His First Voyage… 1768–1771, facing p. 81.Google Scholar
14Cook, James (1769). Journal of the Voyage of the Endeavour. Admiralty MS in the Public Record Office, London. Adm 55/40. Cited in Beaglehole, J. C., ed. (1955). Cambridge University Press, p. 73.Google Scholar
15Bayly, William. The Original Astronomical Observations Made in the Course of a Voyage to the Northern Pacific Ocean. Commissioners of Longitude, London, pp. 27–28. Bayly gives a mean value of 210° 29′8½″ (149°30·9′W) but the correctly calculated mean is 210°30′ II″E (149° 29.8′W).Google Scholar
16Green, Charles and Cook, James. (1771). Observations made…at King George's Island…by Mr Charles Green… and Lieut. James Cook…Philosophical Transactions of the Royal Society 61, pp. 407–408. The given mean of 149° 36′39″ W is the mean of each day's observations. The mean of the sets, which is how Vancouver would have calculated it, is 149° 34′ 56˝ W (149° 34·9′W). William Wales (1777) accepted 149° 34′49½˝ W (149° 34·8′W) as being correct. Green died during the voyage home.Google Scholar
17Doe, N. A. (1993). An analysis of Captain Cook's longitude determinations at Nootka, April 1778. Journal of the Canadian Hydrographic Association, Lighthouse, no. 48. pp. 21–29.Google Scholar
18Standish, E. M.et al. (1992). Orbital ephemerides of the Sun, Moon, and Planets. In Explanatory Supplement to the Astronomical Almanac. Siedelmann, P. K., ed. University Science Books, California, pp. 70–84.Google Scholar
19Doe, N. A. (1994). Vancouver's strange reporting of longitude determinations by Peter Puget (unpublished paper).Google Scholar
20 Lord Commissioners of the Admiralty. (1848). Reduction of Observations of the Moon made at Greenwich from 1750 to 1830. RGO Archives, Cambridge University.Google Scholar
21Humboldt, Alexander von. (1811). Political Essay on the Kingdom of New Spain. Black, J., trans. London, p. lvi.Google Scholar
22 Museo Naval Madrid MS 619. (1793). Voyage of Sutil and Mexicana 1792. Kendrick, J., trans. (1991). Clark, Arthur H., Spokane, Washington, p. 215.Google Scholar