One of the mountains slowly coming into view on the horizon as the ships continued their way was so remarkably like Mount Etna in appearance that it was so named by the members of the expedition, but official requirements of the case necessitated another name being given to it. It was entered in the record as Mount Melbourne, while another, lying beyond it, was named Mount Monteagle. These were the highest mountains seen up to that time, and presented an imposing appearance. Yet others were sighted in the course of a few days which quite eclipsed them. These were the two volcanoes which were named after the two vessels, Mount Erebus and Mount Terror. Mount Erebus, 12,400 feet high, was in active eruption when first seen, and has been so on every occasion that man has looked upon it since. At the time of its discovery it was giving a display that was extraordinarily grand, the more so by reason of its surroundings. It was snow-clad to within a few hundred feet of its conical summit, while its huge base rested on a wide stretch of ice, gleaming and shimmering in the sunlight. Between the ice wall, hundreds of feet high, which marked the coast line, and the vessels, the water was blue and clear, reflecting the hue of the sky above. From the crater alternate bursts of smoke and flame were flung up, the rumbling sound of the explosions floating down through the frozen stillness in a faint echo like that of heavy distant artillery fire. In the official account it is described as follows:-- "A volume of dense smoke was projected at each successive jet with great force, in a vertical column to a height of between 1500 and 2000 feet above the mouth of the crater, when, condensing at its upper part, it descended in mist or snow, to be succeeded by another splendid exhibition of the same kind in about half-an-hour afterwards, although the intervals between the eruptions were by no means regular. The diameter of the column of smoke was between 200 and 300 feet, as near as we could measure it. Whenever the smoke cleared away, the bright red flames that filled the mouth of the crater were clearly perceptible, and some of the officers believed they could see streams of lava pouring down its side until lost beneath the snow, which descended from a few hundred feet below the crater and projected its perpendicular icy cliffs several miles into the ocean."