“All right,” said I; “but put some corrosive sublimate on it just the same. And some two or three weeks from now, when it is well and you have a scar that you will carry to your grave, just forget about the purity of your blood and your ancestral history and tell me what you think about yaws anyway.” “Nothing,” said she.!

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. Once even, she had said:

CHAPTER XVII THE AMATEUR M.D. “What do you make that out to be?” I asked Hermann, at the wheel. Three hours from the time our messenger started, a whale-boat, pressing along under a huge spread of canvas, broke through the thick of a shrieking squall to windward. It was Captain Keller, wet with rain and spray, a revolver in belt, his boat’s crew fully armed, anchors and hawsers heaped high amidships, coming as fast as wind could drive—the white man, the inevitable white man, coming to a white man’s rescue.