Tuesday, 20th September 1768

Light Airs and Clear weather. P.M. took several Azimuth, which gave the Variation 16 degrees 30 minutes West. Put the Ship's Company to three Watches. Wind variable; course South 21 degrees 30 minutes West; distance 28 miles; latitude 31 degrees 17 minutes, longitude 17 degrees 19 minutes West; at noon, Funchall, Island of Madeira, North 13 degrees East, 76 miles.