It was fully eleven by the time I had completed these arrangements, and I at once betook myself to bed with full confidence in my invention. Nor in this matter was I disappointed. Punctually every sixty minutes I was aroused by my trusty clock, when, having emptied the pitcher into the bung-hole of the keg and filled the chamber with condensed air, I retired again to bed. These regular interruptions to my slumber caused me less discomfort than I had anticipated; and when I finally arose for the day, it was seven o’clock and the sun was high above the horizon.
I found the balloon at an immense height indeed, and the earth’s roundness had now become strikingly manifest. Below me in the ocean lay a cluster of black specks, which undoubtedly were islands. Overhead, the sky was of a jetty black, and the stars were brilliantly visible; indeed they had been so constantly since the first day of ascent. Far away to the northward I saw a thin, white and exceedingly brilliant line, or streak, on the edge of the horizon, and I had no hesitation in supposing it to be the southern disc of the ices of the Polar sea. My curiosity was greatly excited, for I had hopes of passing on much farther to the north, and might possibly, at some period, find myself directly above the Pole itself. I now lamented that my great elevation would, in this case, prevent me from taking as accurate a survey as I could wish.
My condensing apparatus continued in good order, and the balloon still ascended without any perceptible change. The cold was intense, and obliged me to wrap up closely in an overcoat. When darkness came over the earth, I went to bed, although it was for many hours afterward broad daylight all around me. The water-clock was punctual in its duty, and I slept until next morning soundly, with the exception of the periodical interruptions.
April 4th. I arose in good health and spirits, and was astonished at the singular change which had taken place in the appearance of the sea. It had lost, in a great measure, the deep tint of blue it had hitherto worn, being now of a grayish-white and of a luster dazzling to the eye. The curve of the ocean had become so evident that the entire mass of water seemed to be tumbling headlong over the abyss of the horizon, and I found myself listening on tiptoe for the echoes of the mighty cataract. The islands were no longer visible; whether they had passed down the horizon to the southeast, or whether my increasing elevation had left them out of sight, it is impossible to say. I was inclined, however, to the latter opinion. The rim of ice to the northward was growing more and more apparent. The cold was by no means so intense.
April 5th. I beheld the singular sight of the sun rising while nearly the whole visible surface of the earth continued to be involved in darkness. In time, however, the light spread itself over all, and I again saw the line of ice to the northward. It was now very distinct and appeared of a much darker hue than the waters of the ocean. I was evidently approaching it, and with great rapidity. I fancied I could again distinguish a strip of land to the eastward, and one also to the westward, but could not be certain.
April 6th. I was surprised at finding the rim of ice at a very moderate distance, and an immense field of the same material stretching away off to the horizon in the north. It was evident that if the balloon held its present course, it would soon arrive above the Frozen Ocean, and I had now little doubt of ultimately seeing the Pole. During the whole of the day I continued to near the ice. Toward night the limits of my horizon very suddenly and materially increased, owing undoubtedly to the earth’s form, which is round but flattened near the poles. When darkness at length overtook me, I went to bed in great anxiety, fearing to pass over the object of so much curiosity when I should have no opportunity of observing it.
April 7th. I arose early, and, to my great joy, at length beheld what there could be no hesitation in supposing the northern Pole itself. It was there, beyond a doubt, and immediately beneath my feet; but alas! I had now ascended to so vast a distance that nothing could with accuracy be made out. Indeed, I estimated that at four o’clock in the morning of April the seventh the balloon had reached a height of not less than 7,254 miles above the surface of the sea. At all events I undoubtedly beheld the whole of the earth’s diameter; the entire northern hemisphere lay beneath me like a chart, and the great circle of the equator itself formed the boundary line of my horizon.
April 8th. I found a sensible diminution in the earth’s size, besides a material alteration in its general color and appearance. The whole area partook in different degrees of a tint of pale yellow, and in some portions had acquired a brilliancy even painful to the eye. My view was somewhat impeded by clouds near the earth, but nevertheless I could easily perceive that the balloon now hovered above the great lakes in North America and was holding a course due south which would soon bring me to the tropics. This circumstance did not fail to give me the most heartfelt satisfaction, and I hailed it as a happy omen of ultimate success. Indeed, the direction I had hitherto taken had filled me with uneasiness, for it was evident that had I continued it much longer, there would have been no possibility of my arriving at the moon at all, which revolves around the earth in the plane of the equator.
April 9th. To-day the earth’s diameter was greatly diminished, and the color of the surface assumed hourly a deeper tint of yellow. The balloon kept steadily on her course to the southward, and arrived at nine P. M. over the Mexican Gulf.
April 12th. A singular alteration took place in regard to the direction of the balloon, and, although fully anticipated, afforded me the very greatest delight. Having reached, in its former course, about the twentieth parallel of southern latitude, it turned off suddenly at an acute angle to the eastward, and thus proceeded throughout the day, keeping nearly, if not altogether, in the exact plane of the moon’s path around the earth.