[Off Cape de Verd Islands.]
Friday, 30th. A Steady breeze and Pleasant weather. At 6 a.m. saw the Island of Bonavista (one of the Cape de Verd islands), Extending from South by East to South-West by South, distance 3 or 4 Leagues. Ranged the East side of this Island at the Distance of 3 or 4 miles from the Shore, until we were obliged to Haul Off to avoid a Ledge of Rocks which stretched out South-West by West from the Body or South-East Point of the Island 1 1/2 leagues. Had no ground with 40 fathoms a Mile without this Ledge. The Island of Bonavista is in Extent from North to South about 5 leagues, is of a very uneven and hilly Surface, with low sandy beaches on the East side. The South-East part of the Island, from which I take my Departure, by an Observation this day at Noon lies in the latitude of 16 degrees North, and according to our run from Madeira in the longitude of 21 degrees 51 minutes West from Greenwich, and South 21 degrees West; 260 leagues from Tenerriff. Drawings Numbers 1 and 2 represent the appearance of the East side of this Island, where (2) is the South-East point, with the hill over it, which is high, of a round Figure, and the southermost on the Island. Wind North-East; course South 12 degrees 30 minutes West; distance 97 miles; latitude 15 degrees 37 minutes North per observation; Teneriffe, North 20 degrees 43 minutes East, 262 1/3 leagues; at noon the hill on the South-East Point of the Island Bonavista North 69 degrees West, distant from the shore 3 leagues.
[October 1768.]
Saturday, October 1st. A steady gale and somewhat Hazey. Variation by very good Azimuths this Evening 10 degrees 37 minutes, and by the same in the Morning 10 degrees 0 minutes West; at Noon found the ship a Head of the Log 5 Miles. Wind North, North-North-East; course South 12 degrees 12 minutes West; distance 114 miles; latitude 14 degrees 6 minutes North, longitude 22 degrees 10 minutes West; at noon Island of Bonavista, South-East point, North 9 degrees West, 116 miles.
Sunday, 2nd. First part a Steady breeze and pleasant weather, remainder light breezes and Cloudy. At noon found the Ship by Observation ahead of the Log 7 miles. Wind North by East, North-North-West; course South 1 degree West; distance 92 miles; latitude 12 degrees 34 minutes North, longitude 22 degrees 10 minutes West; at noon Bonavista, South-East point, North 5 degrees 45 minutes East, 69 leagues.
Monday, 3rd. Cloudy weather, with light winds and Calms. Variation by this Evening Amplitude South 8 degrees 49 minutes West. A.M. hoisted out a Boat to try if there was any Current; found one setting to the South-East at the rate of 3/4 of a Mile per hour. Wind North, calm, South-South-West 1/2 West; course South 3 degrees 30 minutes East; distance 20 miles; latitude 12 degrees 14 minutes North, longitude 22 degrees 10 minutes West; at noon, Bonavista, South-East point, North 5 degrees East, 76 leagues.
Tuesday, 4th. Calm for the Greatest part of the 24 Hours. By an Observation we had this Morning of the Sun and Moon found our Selves in the Longitude of 22 degrees 32 minutes 30 seconds West from Greenwich; that by account is 21 degrees 58 minutes, the Difference being 34 miles Westerly, which does not agree with the Setting of the Current, for having try'd it twice to-day and found it set to the East-South-East 1 Mile per Hour, and at the same time found the Ship to the Southward of the Log by the Noon Observation 10 miles. Served Portable soup and Sour kroutt to the Ship's Company. Wind variable; course South 53 degrees West; distance 17 miles; latitude 11 degrees 53 minutes North, longitude 22 degrees 33 minutes West; at noon, Bonavista, South-East point, North 2 degrees East, 82 leagues.
Wednesday, 5th. Light breezes of Wind, sometimes Clear and sometimes Cloudy weather. Variation 6 degrees 10 minutes West by an Amplitude and Azimuth this evening. At noon found the Ship by the Observed Latitude 7 Miles to the Southward of the Log, and by the Observed Longitude 30 degrees to the Eastward of Yesterday's Observations; and as these Observations for finding the Longitude (if carefully observed with good Instrument) will generally come within 10 or 15 Miles of each other, and very often much nearer, it therefore can be no longer in Doubt but that there is a Current setting to the Eastward;* (* This was the Counter Equatorial Current.) yet we cannot have had this Current long, because the Longitude by account and that by Observation agree to-day, but Yesterday she was 28 miles to the Westward of the Observation. Wind calm, North-East, East; course South 29 degrees East; distance 57 miles; latitude 10 degrees 56 minutes North, longitude 22 degrees 3 minutes West; at noon, Bonavista, South-East point, North 2 degrees East, 101 leagues.
Thursday, 6th. First part light Breezes and Cloudy; Middle frequent heavy Squalls, with rain, till towards Noon when we had again little wind. Found the Variation by the mean of 3 Azimuth, taken this Morning, to be 8 degrees 52 minutes West, which makes the Variation found Yesterday doubtful. Wind North-East, South-East, Southerly; course South 10 degrees 30 minutes West; distance 77 miles; latitude 9 degrees 40 minutes North, longitude 22 degrees 28 minutes West; at noon, Bonavista, South-East point, North 4 degrees East, 128 leagues.
Friday, 7th. Variable light Airs and Calm all these 24 Hours. At Noon found the Current to set South-East 1/4 South one Mile per hour, and yet by Observation at Noon I find the Ship 12 Miles to the Northward of Account, a Circumstance that hath not hapned for many days, and which I believe to be owing to the heavy Squalls we had Yesterday from the South-East, which obliged us to put frequently before the Wind. Wind Southerly, calm, Northerly; course South 5 degrees West; distance 10 miles; latitude 9 degrees 42 minutes North, longitude 22 degrees 19 minutes West; at noon, Bonavista, South-East point, North 4 degrees East, 127 leagues.