1675 La Roche.
In April, 1675, Anthony la Roche, an English merchant, in his return from the South Pacific Ocean, where he had been on a trading voyage, being carried by the winds and currents, far to the east of Strait Le Maire, fell in with a coast, which may possibly be the same with that which I visited during this voyage, and have called the Island of Georgia.
Leaving this land, and sailing to the north, La Roche, in the latitude of 45° S., discovered a large island, with a good port towards the eastern part, where he found wood, water, and fish.
1699 Halley.
In 1699, that celebrated astronomer, Dr Edmund Halley, was appointed to the command of his majesty's ship the Paramour Pink, on an expedition for improving the knowledge of the longitude, and of the variation of the compass; and for discovering the unknown lands supposed to lie in the southern part of the Atlantic Ocean. In this voyage he determined the longitude of several places; and, after his return, constructed his variation-chart, and proposed a method of observing the longitude at sea, by means of the appulses and occultations of the fixed stars. But, though he so successfully attended to the two first articles of his instructions, he did not find any unknown southern land.
1721 Roggewein.
The Dutch, in 1721, fitted out three ships to make discoveries in the South Pacific Ocean, under the command of Admiral Roggewein. He left the Texel on the 21st of August, and arriving in that ocean, by going round Cape Horn, discovered Easter Island, probably seen before, though not visited, by Davis;* then between 14° 41' and 15° 47' S. latitude, and between the longitude of 142° and 150° W., fell in with several other islands, which I take to be some of those seen by the late English navigators. He next discovered two islands in latitude 15° S., longitude 170° W., which he called Baumen's Islands; and, lastly, Single Island, in latitude 13° 41' S., longitude 171° 30' W. These three islands are, undoubtedly, the same that Bougainville calls the Isles of Navigators.
[* See Waser's description of the Isthmus of Darien.]
1738 Bouvet.
In 1738, the French East India Company sent Lozier Bouvet with two ships, the Eagle and Mary, to make discoveries in the South Atlantic Ocean. He sailed from Port L'Orient on the 19th of July in that year; touched at the island of St Catherine; and from thence shaped his course towards the south-east.