Thursday, 30th March 1769

First part, Calm and close Cloudy weather; in the night had Variable winds and weather, with rain. A.M. Genteel Breezes and Cloudy weather. Between 10 and 11 a.m. took several Observations of the sun and moon; the mean result of them gave the Longitude of the Ship at Noon to be 127 degrees 38 minutes, and is 1 degree 49 minutes East of the Longitude given by the Log; but on the 4th Instant the ship by Observation was 47 minutes West of the Log, therefore she must have lost 2 degrees 36 minutes of the Log since the last Observation--an Error too great to be accounted for. Wind calm, variable, South-South-East; course North 40 degrees West; distance 53 miles; latitude 19 degrees 34 minutes South, longitude 129 degrees 27 minutes West.