Another valuable observation made, was that the vibrations of the compass were as slow in these southern latitudes as Parry had noted them to be in the Arctic regions. Weddell's two vessels, separated in a storm, met again in New Georgia after a perilous voyage of 1200 miles amongst the ice. New Georgia, discovered by La Roche in 1675, and visited in 1756 by the _Lion_, was really little known until after Captain Cook's exploration of it, but his account of the number of seals and walruses frequenting it had led to being much favoured by whalers, chiefly English and American, who took the skins of their victims to China and sold them at a guinea or thirty shillings each. "The island," says Weddell, speaking of South Georgia, "is about ninety-six miles long, and its mean breadth about ten. It is so indented with bays, that in several places, where they are on opposite sides, they are so deep as to make the distance from one side to the other very small. The tops of the mountains are lofty, and perpetually covered with snow; but in the valleys, during the summer season, vegetation is rather abundant. Almost the only natural production of the soil is a strong-bladed grass, the length of which is in general about two feet; it grows in tufts on mounds three or four feet from the ground. No land quadrupeds are found here; birds and amphibious animals are the only inhabitants." Here congregate numerous flocks of penguins, which stalk about on the beach, head in air. To quote an early navigator, Sir John Nasborough, they look like children in white aprons. Numerous albatrosses are also met with here, some of them measuring seventeen feet from tip to tip of their wings. When these birds are stripped of their plumage their weight is reduced one-half. [Illustration: "Here congregate flocks of penguins."] Weddell also visited New Shetland, and ascertained that Bridgeman Island, in that group, is an active volcano. He could not land, as all the harbours were blocked up with ice, and he was obliged to make for Tierra del Fuego. During a stay of two months here, Weddell collected some valuable information on the advantages of this coast to navigators, and obtained some accurate data as to the character of the inhabitants. In the interior of Tierra del Fuego rose a few mountains, always covered with snow, the loftiest of which were not more than 3000 feet high. Weddell was unable to identify the volcano noticed by other travellers, including Basil Hall in 1822, but he picked up a good deal of lava which had probably come from it. There was, moreover, no doubt of its existence, for the explorer under notice had seen on his previous voyage signs of a volcanic eruption in the extreme redness of the sky above Tierra del Fuego.