A wide extent of ocean was seen beneath their feet. On they floated. Then fields of ice and icebergs, and wide extended lands covered with snow, and vast mountains of ice. Once more they moved on, slowly as before. "We are at the antarctic pole," said the Genius. "See, our cloud of silver meets another of gold, pressing gently." Up, up, they mount. "Once more we will move towards the tropic of Capricorn, high up above the globe. Now we descend in that calm region; and now close to the earth we are moving on. But see, coming from the southern pole, the globe moves as before, from west to east; and thus this mass of air, of which our silvery cloud, remember, is but a portion, seems to those on the earth to be coming from the south-east. As this wind is always blowing, and as ships by getting within its influence are borne easily forward, and it thus facilitates commerce, it is called the south-east trade-wind." On they went, till again the calms of the equator were reached, or rather, till the air, exhausted by its long course, met another gentle current, and the two pressing together rose upwards, the silvery cloud going on towards the tropic of Cancer, till forced by another current, known by its golden hue, to descend, it went on close to the earth towards the northern pole, where a calm, caused by another gentle current meeting it, was created. Gently pressed up, however, the silvery cloud finally reached the higher region, whence the Genius and the boy had started with it on its long journey.