Icebergs chiefly abound in Baffin Bay, and in the gulfs and inlets connected with it. They are particularly numerous in the great indentation known as Melville Bay, the whole interior of the country bordering upon it being the seat of immense glaciers, and these are constantly “shedding off” icebergs of the largest dimensions. The greater bulk of these is, as we have explained, below the water-line; and the consequent depth to which they sink when floating subjects them to the action of the deeper ocean-currents, while their broad surface above the water is, of course, acted on by the wind. It happens, therefore, as Dr. Kane remarks, that they are found not infrequently moving in different directions from the floes around them, and preventing them for a time from freezing into a united mass. Still, in the late winter, when the cold has thoroughly set in, Melville Bay becomes a continuous mass of ice, from Cape York to the Devil’s Thumb. At other times, this region justifies the name the whalers have bestowed upon it of “Bergy Hole.” Captain Beechey, in his voyage with Buchan, in 1818, had an opportunity of witnessing the formation of a “berg,” or rather of two of these immense masses. In Magdalena Bay he had taken the ship’s launch near the shore to examine a magnificent glacier, when the discharge of a gun caused an instantaneous disruption of its bulk. A noise resembling thunder was heard in the direction of the glacier, and in a few seconds more an immense piece broke away, and fell headlong into the sea. The crew of the launch, supposing themselves beyond the reach of its influence, quietly looked upon the scene, when a sea arose and rolled towards the shore with such rapidity that the boat was washed upon the beach and filled. As soon as their astonishment had subsided, they examined the boat, and found her so badly stove that it was necessary to repair her before they could return to their ship. They had also the curiosity to measure the distance the boat had been carried by the wave, and ascertained that it was ninety-six feet. A short time afterwards, when Captain Beechey and Lieutenant Franklin had approached one of these stupendous walls of ice, and were endeavouring to search into the innermost recess of a deep cavern that lay near the foot of the glacier, they suddenly heard a report, as of a cannon, and turning to the quarter whence it proceeded, perceived an immense section of the front of the glacier sliding down from the height of two hundred feet at least into the sea, and dispersing the water in every direction, accompanied by a loud grinding noise, and followed by an outflow of water, which, being previously lodged in the fissures, now made its escape in innumerable tiny flashing rills and cataracts.