But in our particular case there was another perturbing factor. The sun, in its annual march north through the heavens, was increasing its declination. On the 19th parallel of north latitude in the middle of May the sun is nearly overhead. The angle of arc was between eighty-eight and eighty-nine degrees. Had it been ninety degrees it would have been straight overhead. It was on another day that we learned a few things about taking the altitude of the almost perpendicular sun. Roscoe started in drawing the sun down to the eastern horizon, and he stayed by that point of the compass despite the fact that the sun would pass the meridian to the south. I, on the other hand, started in to draw the sun down to south-east and strayed away to the south-west. You see, we were teaching ourselves. As a result, at twenty-five minutes past twelve by the ship’s time, I called twelve o’clock by the sun. Now this signified that we had changed our location on the face of the world by twenty-five minutes, which was equal to something like six degrees of longitude, or three hundred and fifty miles. This showed the Snark had travelled fifteen knots per hour for twenty-four consecutive hours—and we had never noticed it! It was absurd and grotesque. But Roscoe, still looking east, averred that it was not yet twelve o’clock. He was bent on giving us a twenty-knot clip. Then we began to train our sextants rather wildly all around the horizon, and wherever we looked, there was the sun, puzzlingly close to the sky-line, sometimes above it and sometimes below it. In one direction the sun was proclaiming morning, in another direction it was proclaiming afternoon. The sun was all right—we knew that; therefore we were all wrong. And the rest of the afternoon we spent in the cockpit reading up the matter in the books and finding out what was wrong. We missed the observation that day, but we didn’t the next. We had learned. I compromised by subtracting thirty-one seconds from the total of my chronometer’s losing error, and sailed away for Tanna, in the New Hebrides, resolved, when nosing around the land on dark nights, to bear in mind the other seven miles I might be out according to Captain Wooley’s instrument. Tanna lay some six hundred miles west-southwest from the Fijis, and it was my belief that while covering that distance I could quite easily knock into my head sufficient navigation to get me there. Well, I got there, but listen first to my troubles. Navigation is easy, I shall always contend that; but when a man is taking three gasolene engines and a wife around the world and is writing hard every day to keep the engines supplied with gasolene and the wife with pearls and volcanoes, he hasn’t much time left in which to study navigation. Also, it is bound to be easier to study said science ashore, where latitude and longitude are unchanging, in a house whose position never alters, than it is to study navigation on a boat that is rushing along day and night toward land that one is trying to find and which he is liable to find disastrously at a moment when he least expects it.!

“Poor little chap! poor little chap!” All was plain again. The Snark was in 19° south latitude. The world wasn’t as big around there as at the equator. Therefore, every mile of westing at 19° south was more than a minute of longitude; for sixty miles were sixty miles, but sixty minutes are sixty miles only at the equator. George Francis Train broke Jules Verne’s record of around the world. But any man that wants can break George Francis Train’s record. Such a man would need only to go, in a fast steamer, to the latitude of Cape Horn, and sail due east all the way around. The world is very small in that latitude, and there is no land in the way to turn him out of his course. If his steamer maintained sixteen knots, he would circumnavigate the globe in just about forty days.

The Snark is to be sailed. There will be a gasolene engine on board, but it will be used only in case of emergency, such as in bad water among reefs and shoals, where a sudden calm in a swift current leaves a sailing-boat helpless. The rig of the Snark is to be what is called the “ketch.” The ketch rig is a compromise between the yawl and the schooner. Of late years the yawl rig has proved the best for cruising. The ketch retains the cruising virtues of the yawl, and in addition manages to embrace a few of the sailing virtues of the schooner. The foregoing must be taken with a pinch of salt. It is all theory in my head. I’ve never sailed a ketch, nor even seen one. The theory commends itself to me. Wait till I get out on the ocean, then I’ll be able to tell more about the cruising and sailing qualities of the ketch. “East-northeast,” he gives me the course. “She’s eight points off, but she ain’t steering.” We unsaddled our horses for lunch, and after we had fought the stallions apart—mine with several fresh chunks bitten out of his back—and after we had vainly fought the sand-flies, we ate bananas and tinned meats, washed down by generous draughts of cocoanut milk. There was little to be seen. The jungle had rushed back and engulfed the puny works of man. Here and there pai-pais were to be stumbled upon, but there were no inscriptions, no hieroglyphics, no clues to the past they attested—only dumb stones, builded and carved by hands that were forgotten dust. Out of the pai-pais grew great trees, jealous of the wrought work of man, splitting and scattering the stones back into the primeval chaos.