Tuesday, 6th September 1768

Moderate breezes and Clear weather these 24 Hours. A.M. found the Variation by the Mean of 5 Azimuth to be 21 degrees 40 minutes West, 3 Degrees more than what it was found Yesterday, which I cannot account for,* (* Cook, as all other navigators of his time, was unaware of the deviation of the compass caused by the iron of the ship.) as both Observations appeared to me to be equally well made. At 10.28 had an Observation of the sun and moon, which gave the Longitude 9 degrees 40 minutes West from Greenwich. By this Observation Cape Finister must lay in 8 degrees 52 minutes, and by that made yesterday in 8 degrees 40 minutes. The Mean of the two is 8 degrees 46 minutes West of Greenwich the Longitude of the Cape,* (* The correct longitude is 9 degrees 15 minutes West.) its latitude being 42 degrees 53 minutes North. Wind North-West; course South 42 degrees West; distance 70 miles; latitude 42 degrees 1 minute North, longitude 9 degrees 50 minutes West; at noon, Cape Finister North 42 degrees East, 70 miles.