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. But to return. Please do not think that I already know it all. I know only the rudiments of navigation. There is a vast deal yet for me to learn. On the Snark there is a score of fascinating books on navigation waiting for me. There is the danger-angle of Lecky, there is the line of Sumner, which, when you know least of all where you are, shows most conclusively where you are, and where you are not. There are dozens and dozens of methods of finding one’s location on the deep, and one can work years before he masters it all in all its fineness.!

“Wada San, to-morrow morning, your watch, you look sharp on weather-bow you see land.” The body was taken to Pont-l’Eveque, according to Madame Aubain’s wishes; she followed the hearse in a closed carriage.

“Very well,” answers my logical mind. “To be correct, 8.25 P.M. is really twenty hours and twenty-five minutes, and that is certainly better than eight hours and nine minutes. No, there is no discussion; you are in west longitude.” “The Compass Course is the course to steer, and is derived from the Correct Magnetic Course by applying to it the Deviation.” “Yes, yes, I know that,” I went on; “but what does it mean in your hands?”