Thursday

Friday, 31st March 1769

A Steady breeze and fine pleasant weather. A.M. took several Observations of the sun and moon, the mean result of them came within 8 Miles of Yesterday's Observations computed both by Mr. Green and myself, and yet cannot think so great an error can have been committed in the ship's run in so short a time as these observations seem to point out, and therefore I shall abide by the Longitude given by the Log unless from subsequent Observations this error should be found to be just. Wind South; course North 75 degrees 45 minutes West; distance 111 miles; latitude 19 degrees 7 minutes South, longitude 131 degrees 21 minutes West.

Wednesday

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.

Tuesday

Wednesday, 29th March 1769

Little winds and Cloudy weather. Variation per Azimuth 2 degrees 27 minutes East. Saw a Bird like a Dove and several fish about the Ship. Employed worming the Best Br. Cable, repairing and Painting the Boats. Wind Easterly; course North 75 degrees West; distance 50 miles; latitude 20 degrees 14 minutes South, longitude 129 degrees 27 minutes West.

Monday

Tuesday, 28th March 1769

Little wind and Cloudy. Variation per Amplitude 3 degrees 56 minutes East. Wind Easterly; course North-North-West; distance 37 miles; latitude 20 degrees 38 minutes South, longitude 127 degrees 50 minutes West.

Sunday

Monday, 27th March 1769

Variable winds and weather, with frequent showers of rain. At Noon saw a Bird like a Gannet. Wind variable; course North 1/4 East; distance 30 miles; latitude 21 degrees 2 minutes South, longitude 127 degrees 38 minutes West.

Saturday

Sunday, 26th March 1769

Squally weather, with rain. At 5 p.m. saw some sea Weed pass the Ship, and at 7 William Greenslade, Marine, either by Accident or design, went overboard and was Drowned. The following circumstances makes it appear as tho' it was done design'dly. He had been Centinel at the Steerage door between 12 and 4 o'clock, where he had taken part of a Seal Skin put under his charge, and which was found upon him. The other Marines thought themselves hurt by one of their party commiting a crime of this nature, and he being a raw young fellow, and, as very probable, made him resolve upon commiting this rash Action, for the Serjeant not being willing that it should pass over unknown to me, was about 7 o'clock going to bring him aft and have it inquired into, when he gave him the Slip between Decks, and was seen to go upon the Forecastle, and from that time was seen no more. I was neither made acquainted with the Theft or the Circumstances attending it, until the Man was gone. Wind, North-West to West; longitude 127 degrees 43 minutes West.

Friday

Saturday, 25th March 1769

First part dark cloudy weather, with rain and a fresh breeze of wind; remainder fair and Cloudy. Wind North-West by North, to West by North; course North-East 1/2 North; distance 95 miles; latitude 22 degrees 11 minutes South, longitude 127 degrees 55 minutes West.

Thursday

Friday, 24th March 1769

Fresh Gales and Cloudy, with some rain in the forepart of this day. All the forepart of these 24 hours the Sea was smooth, but at 12 at night it was more so, and about 3 in the Morning one of the people saw, or thought he saw, a Log of Wood pass the Ship. This made us think that we were near some land,* but at daylight we saw not the least appearance of any, and I did not think myself at liberty to spend time in searching for what I was not sure to find, although I thought myself not far from those Islands discovered by Quiros in 1606; and very probably we were not, from the birds, etc., we have seen for these 2 or 3 days past. Wind West-North-West to North-West; course North-East by North 1/4 East; distance 99 miles; latitude 22 degrees 23 minutes South, longitude 129 degrees 2 minutes West.

* The Endeavour was now passing to the  northward of the easternmost islands of the Paumotu or Low Archipelago, though out of sight of them.

Wednesday

Thursday, 23rd March 1769

Fresh gales and Squally, with rain, the first part; remainder fresh Gales and Cloudy. P.M. saw some Men-of-War Birds, and Egg Birds, and in the Morning saw more Egg Birds and Tropic Birds. The Man-of-War and Tropic Birds are pretty well known, but the Egg Bird (as it is called in the Dolphin's Journal) requires some discription to know it by that Name. It is a small slender Bird of the Gull kind, and all white, and not much unlike the small white Gulls we have in England, only not so big.* There are also Birds in Newfoundland called Stearings that are of the same shape and Bigness, only they are of a Greyish Colour. These Birds were called by the Dolphin Egg Birds on account of their being like those known by that name by Sailors in the Gulph of Florida; neither they nor the Man-of-War Birds are ever reckoned to go very far from Land. Wind North by West to West by North: course North 13 degrees West; distance 49 miles; latitude 24 degrees 43 minutes South, longitude 130 degrees 8 minutes West.

* Terns.

Tuesday

Wednesday, 22nd March 1769

First part Calm, in the night Squally, with rain. A.M. a fresh breeze and Cloudy. Variation per Amplitude 3 degrees 10 minutes East. Saw some Egg Birds. Wind North by East to North-North-West; course West; distance 57 miles; latitude 25 degrees 21 minutes South, longitude 129 degrees 52 minutes West.

Monday

Tuesday, 21st March 1769

First part little wind, the remainder Calm. Variation, 3 degrees 43 minutes East. Saw some rock weed and a great many Tropic Birds. Wind West by North, calm; course North; distance 23 miles; latitude 25 degrees 21 minutes South, longitude 129 degrees 28 minutes West.

Sunday

Monday, 20th March 1769

A Fine breeze and pleasant weather. Saw several Tropic Birds. Wind West; course North; distance 95 miles; latitude 25 degrees 44 minutes South, longitude 129 degrees 28 minutes West.

Saturday

Sunday, 19th March 1769

First part fresh Gales and Squally, with rain; remainder more moderate and cloudy. Variation, a.m. per Means of several Azimuths, 3 degrees 14 minutes East. Loosed the 2d reefs out of the Topsails. Wind between the North and West; course North 52 degrees West; distance 50 miles; latitude 27 degrees 21 minutes South, longitude 129 degrees 28 minutes West.

Friday

Saturday, 18th March 1769

First part, little wind and Cloudy; latter, fresh gales and hard Squalls, with much rain. Took 2 Reefs in the Topsails. Wind North-East North; course North 60 degrees 45 minutes West; distance 78 miles; latitude 27 degrees 52 minutes South, longitude 128 degrees 44 minutes West.

Friday, 17th March 1769

Friday, 17th. Little wind and fine Pleasant weather. Variation, p.m. 3 degrees 27 minutes East. Wind, South-East by South; course, North 20 degrees West; distance, 55 miles; latitude 28 degrees 30 minutes South, longitude 127 degrees 29 minutes West.

Wednesday

Thursday, 16th March 1769

Light Airs next to a Calm and clear Weather. Variation by the mean result of 21 Azimuths, 1 degree 30 minutes East. This evening observed an Occultation of h by the [crescent],* Immersion at ---- hours ---- minutes and Emersion at ---- hours ---- minutes ---- seconds a.m.** Variation per several Azimuths 2 degrees East. Wind East-South-East, South-South-East, South-West; course North-North-West; distance 34 miles; latitude 29 degrees 22 minutes South, longitude 127 degrees 8 minutes

* h is Saturn, [crescent] the Moon.
** Blanks in manuscript.

Tuesday

Wednesday, 15th March 1769

Light breezes and clear weather. Variation, p.m. 3 degrees 45 minutes East, a.m. 3 degrees 22 minutes East. Saw a Tropic Bird. Wind, East-North-East and East-South-East; course, North 47 degrees 15 minutes West; distance, 50 miles; latitude 29 degrees 43 minutes South, longitude 126 degrees 53 minutes West.

Monday

Tuesday, 14th March 1769

Little wind and fine Pleasant weather. At 3 p.m. took several Observations of the sun and moon; the mean result of which gave 126 degrees 20 minutes 45 seconds, the Longitude of the Ship West of Greenwich, and is 47 degrees Longitude West of account carried on from Cape Horn. Wind South, East-South-East, East-North-East; course North 50 degrees West; distance 47 miles; latitude 30 degrees 17 minutes South, longitude 126 degrees 10 minutes West.

Sunday

Monday, 13th March 1769

First part a Steady, fresh Gale; the remainder, little wind and fine Clear weather. Wind South-East; course North 48 degrees 15 minutes West; distance 72 miles; latitude 30 degrees 46 minutes South, longitude 125 degrees 28 minutes West.

Saturday

Sunday, 12th March 1769

Ditto weather. Variation 4 degrees 12 minutes East. Put the Ship's Company to three Watches, they having been at Watch and Watch since our first arrival on the coast of Terra del Fuego. Wind South-East; course North 49 degrees West; distance 122 miles; latitude 31 degrees 34 minutes South, longitude 124 degrees 25 minutes West.

Friday

Saturday, 11th March 1769

A Steady gale and fine weather. Variation 4 degrees 12 minutes East. Wind South-East; course North 46 degrees 15 minutes West; distance 116 miles; latitude 32 degrees 54 minutes South, longitude 122 degrees 35 minutes West.

Thursday

Friday, 10th March 1769

Moderate breezes and fine Pleasant weather. Wind South-East; course North 40 degrees West; distance 121 miles; latitude 34 degrees 14 minutes South, longitude 120 degrees 54 minutes West.

Wednesday

Thursday, 9th March 1769

First part, moderate and Hazey, with Drizling rain; the remainder fresh breezes and clear weather. Variation 4 degrees 41 minutes east. Wind South-West by West to South by East; course North 38 degrees West; distance 123 miles; latitude 35 degrees 47 minutes South, longitude 119 degrees 18 minutes West.

Tuesday

Wednesday, 8th March 1769

The first and Middle parts moderate breezes and Cloudy; the Latter Part Variable winds and much Rain. Wind North-West, variable; course South 78 degrees West; distance, 76 miles; latitude 37 degrees 24 minutes South, longitude 117 degrees 41 minutes West.

Monday

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.

Sunday

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.

Saturday

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.

Friday

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.

Thursday

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.

Wednesday

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.

Tuesday

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.