In the Journal of the Royal Institute of Navigation there has been a few articles about 'Comlumbus's Method of determining longitude' by Keith A. Pickering and some reaction. They are in the Journals vol.49 (1996), p.444 vol.49 (1996), p.101-103 vol.49 (1996), p.109 vol.50 (1997), 144-147
and in: 'Terrae Incognitae' vol.24, p.68-69 (1992) vol.15, p.102-104 (1983) and in: 'The Mariners Mirror' 81:4, p.403 in short: "....Columbus used the Ephemerides of Johann Mueller". and: "Columbus often asserted that a degree of the Earth's circumference was 56 2/3 miles, or 14 1/6 leagues, and most now accept that Comlumbus'sleague was less than three nautical miles". ----------------------------------------------------------------- Thibaud Taudin-Chabot 52°18'19.85" North 04°51'09.45" East home email: [EMAIL PROTECTED] (attachments max. 500kB; for larger attachments contact me first)
