Every day and every day this unending battle goes on. Ukiukiu is the name of the trade-wind that comes raging down out of the north-east and hurls itself upon Haleakala. Now Haleakala is so bulky and tall that it turns the north-east trade-wind aside on either hand, so that in the lee of Haleakala no trade-wind blows at all. On the contrary, the wind blows in the counter direction, in the teeth of the north-east trade. This wind is called Naulu. And day and night and always Ukiukiu and Naulu strive with each other, advancing, retreating, flanking, curving, curling, and turning and twisting, the conflict made visible by the cloud-masses plucked from the heavens and hurled back and forth in squadrons, battalions, armies, and great mountain ranges. Once in a while, Ukiukiu, in mighty gusts, flings immense cloud-masses clear over the summit of Haleakala; whereupon Naulu craftily captures them, lines them up in new battle-formation, and with them smites back at his ancient and eternal antagonist. Then Ukiukiu sends a great cloud-army around the eastern-side of the mountain. It is a flanking movement, well executed. But Naulu, from his lair on the leeward side, gathers the flanking army in, pulling and twisting and dragging it, hammering it into shape, and sends it charging back against Ukiukiu around the western side of the mountain. And all the while, above and below the main battle-field, high up the slopes toward the sea, Ukiukiu and Naulu are continually sending out little wisps of cloud, in ragged skirmish line, that creep and crawl over the ground, among the trees and through the canyons, and that spring upon and capture one another in sudden ambuscades and sorties. And sometimes Ukiukiu or Naulu, abruptly sending out a heavy charging column, captures the ragged little skirmishers or drives them skyward, turning over and over, in vertical whirls, thousands of feet in the air. CHAPTER II THE INCONCEIVABLE AND MONSTROUS!

It was at Suva, in the Fijis, that I discharged my third and last captain and took up gain the rôle of amateur navigator. I had essayed it once before, under my first captain, who, out of San Francisco, jumped the Snark so amazingly over the chart that I really had to find out what was doing. It was fairly easy to find out, for we had a run of twenty-one hundred miles before us. I knew nothing of navigation; but, after several hours of reading up and half an hour’s practice with the sextant, I was able to find the Snark’s latitude by meridian observation and her longitude by the simple method known as “equal altitudes.” This is not a correct method. It is not even a safe method, but my captain was attempting to navigate by it, and he was the only one on board who should have been able to tell me that it was a method to be eschewed. I brought the Snark to Hawaii, but the conditions favoured me. The sun was in northern declination and nearly overhead. The legitimate “chronometer-sight” method of ascertaining the longitude I had not heard of—yes, I had heard of it. My first captain mentioned it vaguely, but after one or two attempts at practice of it he mentioned it no more. He informed her that she would never see her sweetheart again; for, in order to escape the conscription, he had married a rich old woman, Madame Lehoussais, of Toucques.

No, it is not all monotony. When we had worried along our easting to 126° west longitude, we left the variables and headed south through the doldrums, where was much calm weather and where, taking advantage of every fan of air, we were often glad to make a score of miles in as many hours. And yet, on such a day, we might pass through a dozen squalls and be surrounded by dozens more. And every squall was to be regarded as a bludgeon capable of crushing the Snark. We were struck sometimes by the centres and sometimes by the sides of these squalls, and we never knew just where or how we were to be hit. The squall that rose up, covering half the heavens, and swept down upon us, as likely as not split into two squalls which passed us harmlessly on either side while the tiny, innocent looking squall that appeared to carry no more than a hogshead of water and a pound of wind, would abruptly assume cyclopean proportions, deluging us with rain and overwhelming us with wind. Then there were treacherous squalls that went boldly astern and sneaked back upon us from a mile to leeward. Again, two squalls would tear along, one on each side of us, and we would get a fillip from each of them. Now a gale certainly grows tiresome after a few hours, but squalls never. The thousandth squall in one’s experience is as interesting as the first one, and perhaps a bit more so. It is the tyro who has no apprehension of them. The man of a thousand squalls respects a squall. He knows what they are. We found the variables in 11° north latitude, and 11° north latitude we hugged jealously. To the south lay the doldrums. To the north lay the northeast trade that refused to blow from the northeast. The days came and went, and always they found the Snark somewhere near the eleventh parallel. The variables were truly variable. A light head-wind would die away and leave us rolling in a calm for forty-eight hours. Then a light head-wind would spring up, blow for three hours, and leave us rolling in another calm for forty-eight hours. Then—hurrah!—the wind would come out of the west, fresh, beautifully fresh, and send the Snark along, wing and wing, her wake bubbling, the log-line straight astern. At the end of half an hour, while we were preparing to set the spinnaker, with a few sickly gasps the wind would die away. And so it went. We wagered optimistically on every favourable fan of air that lasted over five minutes; but it never did any good. The fans faded out just the same. And now to the particular physics of surf-riding. Get out on a flat board, six feet long, two feet wide, and roughly oval in shape. Lie down upon it like a small boy on a coaster and paddle with your hands out to deep water, where the waves begin to crest. Lie out there quietly on the board. Sea after sea breaks before, behind, and under and over you, and rushes in to shore, leaving you behind. When a wave crests, it gets steeper. Imagine yourself, on your hoard, on the face of that steep slope. If it stood still, you would slide down just as a boy slides down a hill on his coaster. “But,” you object, “the wave doesn’t stand still.” Very true, but the water composing the wave stands still, and there you have the secret. If ever you start sliding down the face of that wave, you’ll keep on sliding and you’ll never reach the bottom. Please don’t laugh. The face of that wave may be only six feet, yet you can slide down it a quarter of a mile, or half a mile, and not reach the bottom. For, see, since a wave is only a communicated agitation or impetus, and since the water that composes a wave is changing every instant, new water is rising into the wave as fast as the wave travels. You slide down this new water, and yet remain in your old position on the wave, sliding down the still newer water that is rising and forming the wave. You slide precisely as fast as the wave travels. If it travels fifteen miles an hour, you slide fifteen miles an hour. Between you and shore stretches a quarter of mile of water. As the wave travels, this water obligingly heaps itself into the wave, gravity does the rest, and down you go, sliding the whole length of it. If you still cherish the notion, while sliding, that the water is moving with you, thrust your arms into it and attempt to paddle; you will find that you have to be remarkably quick to get a stroke, for that water is dropping astern just as fast as you are rushing ahead.