1. W. E. May, ‘How the Chronometer Went to Sea’, Antiquarian Horology, 9 (1976), 638–63 (p. 643)
2. John McCluer, Description of the Coast of India (London: William Ballintine, 1806), pp. iii–iv.
3. Thomas B. Jervis, speech to Section C of the British Association for the Advancement of Science, in Transactions of the Bombay Geographical Society, 4 (1840), 158–89 (p. 168).
4. Dava Sobel, Longitude: The True Story of a Lone Genius who Solved the Greatest Scientific Problem of His Time (New York: Walker, 1995)
5. David Philip Miller, ‘The Sobel Effect’, Metascience, 11 (2002), 185–200.