Tuesday, 25th. A Genteel breeze and Clear weather, with a Moist Air. Soon after sunrise found the Variation of the Compass to be 2 degrees 24 minutes West, being the Mean result of several very good Azimuths. This was just before we crossed the Line in the Longitude of 29 degrees 29 minutes West from Greenwich. We also try’d the Diping Needle belonging to the Royal Society, and found the North point to Dip 26 degrees below the Horizon; but this Instrument cannot be used at Sea to any great degree of accuracy on account of the Motion of the Ship, which hinders the Needle from resting. However, as the Ship was pretty steady, and by means of a Swinging Table I had made for that purpose, we could be Certain of the Dip to two Degrees at most. The Observed Latitude and that by account nearly Agree. Wind South-East to South-East by East; course South 30 degrees West; distance 95 miles; latitude 0 degrees 15 minutes South, longitude 29 degrees 30 minutes West; at noon, Bonavista, South-East point, North 26 degrees East, 358 leagues.
October 25, 2011
Tuesday, 25th October, 1768