Two or three years later James Weddell, whose real business was sealing, reached a latitude of 74° 15' S., more than three degrees to the south of Cook's farthest point; and for nearly twenty years Weddell's record remained intact. During the first half of the nineteenth century the Southern seas became the scene of extensive sealing industries, and however much we may regret the wholesale slaughter that took place, we have to confess that some of these sealers made important geographical discoveries. Both Captain John Biscoe and Captain John Balleny were engaged in the Antarctic sealing trade, but they were fortunate enough to be employed by the firm of Enderby. Charles Enderby instructed his captains not to neglect geographical discovery, and his instructions were faithfully carried out. To the enterprise of Enderby, and to the courage and perseverance of his captains, we owe the discovery of Graham Land, Enderby Land, Kempe Island, and Sabrina Land. A French expedition under Captain D'Urville, and an American one under Captain Wilkes, followed in 1840. D'Urville, who encountered so many icebergs that he felt as if he was "in the narrow streets of a city of giants," sighted land in latitude 66° S., longitude 140° E., and named this coast Adélie Land. Wilkes also claimed to have discovered land; but of his claims one of our greatest explorers has written: "Had he been more circumspect in his reports of land, all would have agreed that his voyage was a fine performance."