Abstract
Marine sextant, by Ramsden, London, about 1792. Radius 10ʺ (254 mm); brass, glass, wood (National Maritime Museum, NAV1140. © National Maritime Museum, Greenwich)
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Notes
- 1.
J.K. Laughton, ‘Blackwood, Sir Henry, First Baronet (1770–1832)’, rev. Andrew Lambert, Oxford Dictionary of National Biography (Oxford: Oxford University Press, 2004); online edition [http://www.oxforddnb.com/view/article/2548, accessed 23 October 2012].
- 2.
Anita McConnell, Jesse Ramsden (1735–1800). London’s Leading Scientific Instrument Maker (Aldershot: Ashgate, 2007), 39–51.
- 3.
W.F.J. Mörzer Bruyns, Sextants at Greenwich (Oxford: Oxford University Press, 2012), 172; R.O. Morris, ‘Cust, Sir Herbert Edward Purey- (1857–1938)’, Oxford Dictionary of National Biography (Oxford: Oxford University Press, 2004); online edition [http://www.oxforddnb.com/view/article/41230, accessed 23 October 2012].
- 4.
J.K. Laughton, ‘Ommanney, Sir John Acworth (1773–1855)’, rev. Andrew Lambert, Oxford Dictionary of National Biography (Oxford: Oxford University Press, 2004); online edition [http://www.oxforddnb.com/view/article/20757, accessed 23 October 2012]; J.L. Cranmer-Byng and Trevor H. Levere, ‘A Case Study in Cultural Collision: Scientific Apparatus in the Macartney Embassy to China, 1793’, Annals of Science 38 (1981), 503–25; Simon Schaffer, ‘Instruments as Cargo in the China Trade’, History of Science 44 (2006), 217–46.
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Dunn, R. (2016). By Hand or By Engine. In: Craciun, A., Schaffer, S. (eds) The Material Cultures of Enlightenment Arts and Sciences. Palgrave Studies in the Enlightenment, Romanticism and the Cultures of Print. Palgrave Macmillan, London. https://doi.org/10.1057/978-1-137-44379-3_9
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