Tuesday, 7th March 1769

A Moderate steady breeze and clear weather. Wind North-West; course South 64 degrees 15 minutes West; distance, 83 miles; latitude 37 degrees 8 minutes South, longitude 116 degrees 8 minutes West.

Monday, 6th March 1769

Moderate breezes and Tolerable clear weather all this day. The wind a little Variable, which caused us to Tack several Times. Wind North-West by North to West-North-West; course South 57 degrees West; distance 20 miles; latitude 36 degrees 32 minutes South, longitude 114 degrees 30 minutes West.

Sunday, 5th March 1769

First and latter parts, fine Clear weather; the Middle, fresh gales and Hazey, with rain. Wind North-West by North and North-West; course South 81 degrees 40 minutes West; distance 64 miles; latitude 36 degrees 21 minutes South, longitude 114 degrees 9 minutes West.

Saturday, 4th March 1769

First part, Calm; remainder, a fine genteel breeze and clear weather. Variation per Azimuth and Amplitude this Evening 2 degrees 26 minutes East. The South-West swell still keeps up, notwithstanding it hath been Calm 24 hours. Wind calm, North-East, North; course North 50 degrees West; distance 58 miles; latitude 36 degrees 12 minutes South, longitude 112 degrees 50 minutes West.

Friday, 3rd March 1769

First part, moderate breezes; remainder, calm and clear weather. A.M. employed filling salt Water in the Fore Hold and airing all the Spare Sails. Wind West, calm; course North 17 degrees East; distance 31 miles; latitude 36 degrees 49 minutes South, longitude 111 degrees 34 minutes West.

Thursday, 2nd March 1769

Former part, fresh gales and hazey, with much rain; the remainder, a Strong fresh gale and pretty clear weather. Wind Westerly; course North by West; distance 87 miles; latitude 37 degrees 16 minutes South, longitude 112 degrees 5 minutes West.

Wednesday, 1st March 1769

First part fresh breezes, the remainder moderate breezes and clear weather. The result of the Forementioned Observations gives 110 degrees 33 minutes West Longitude from Greenwich, and exactly agrees with the Longitude given by the Log from Cape Horn. This Agreement of the two Longitudes after a Run of 660 leagues is surprizing, and much more than could be expected; but, as it is so, it serves to prove, as well as the repeated trials we have made when the weather would permit,
that we have had no Current that hath Affected the Ship since we came into these Seas. This must be a great Sign that we have been near no land of any extent, because near land are generally found Currents. It is well known that on the East side of the Continent in the North Sea we meet with Currents above 100 Leagues from the Land, and even in the Middle of the Atlantic Ocean, between Africa and America, are always found Currents; and I can see no reason why Currents should not be found in this Sea, supposing a Continent or lands lay not far West from us, as some have imaggin'd, and if such land was ever seen we cannot be far from it, as we are now 560 leagues West of the Coast of Chili.* Wind West by South; course North 76 degrees West; distance 52 miles; latitude 38 degrees 44 minutes South, longitude 111 degrees 43 minutes West; at noon, Cape Horn South 60 degrees East 660 leagues.

* These are instances of Cook's observation and seamanlike perspicacity. The
prevailing belief of the time was in a great southern continent.