Our last day in the crater, Ukiukiu gave us a taste of his strength. He smashed Naulu back all along the line, filled the House of the Sun to overflowing with clouds, and drowned us out. Our rain-gauge was a pint cup under a tiny hole in the tent. That last night of storm and rain filled the cup, and there was no way of measuring the water that spilled over into the blankets. With the rain-gauge out of business there was no longer any reason for remaining; so we broke camp in the wet-gray of dawn, and plunged eastward across the lava to the Kaupo Gap. East Maui is nothing more or less than the vast lava stream that flowed long ago through the Kaupo Gap; and down this stream we picked our way from an altitude of six thousand five hundred feet to the sea. This was a day’s work in itself for the horses; but never were there such horses. Safe in the bad places, never rushing, never losing their heads, as soon as they found a trail wide and smooth enough to run on, they ran. There was no stopping them until the trail became bad again, and then they stopped of themselves. Continuously, for days, they had performed the hardest kind of work, and fed most of the time on grass foraged by themselves at night while we slept, and yet that day they covered twenty-eight leg-breaking miles and galloped into Hana like a bunch of colts. Also, there were several of them, reared in the dry region on the leeward side of Haleakala, that had never worn shoes in all their lives. Day after day, and all day long, unshod, they had travelled over the sharp lava, with the extra weight of a man on their backs, and their hoofs were in better condition than those of the shod horses. I had time in the Fijis to compare my chronometer with two other chronometers. Two weeks previous, at Pago Pago, in Samoa, I had asked my captain to compare our chronometer with the chronometers on the American cruiser, the Annapolis. This he told me he had done—of course he had done nothing of the sort; and he told me that the difference he had ascertained was only a small fraction of a second. He told it to me with finely simulated joy and with words of praise for my splendid time-keeper. I repeat it now, with words of praise for his splendid and unblushing unveracity. For behold, fourteen days later, in Suva, I compared the chronometer with the one on the Atua, an Australian steamer, and found that mine was thirty-one seconds fast. Now thirty-one seconds of time, converted into arc, equals seven and one-quarter miles. That is to say, if I were sailing west, in the night-time, and my position, according to my dead reckoning from my afternoon chronometer sight, was shown to be seven miles off the land, why, at that very moment I would be crashing on the reef. Next I compared my chronometer with Captain Wooley’s. Captain Wooley, the harbourmaster, gives the time to Suva, firing a gun signal at twelve, noon, three times a week. According to his chronometer mine was fifty-nine seconds fast, which is to say, that, sailing west, I should be crashing on the reef when I thought I was fifteen miles off from it.!

All went merrily for ten minutes, when I chanced upon the following rhyme for navigators: Longitude east;

At the end of fifteen minutes, Madame Aubain bade her go. “I had a breeze a little while ago—maybe it will come back again,” Hermann says hopefully, ere he starts forward to the cabin and his bunk. But this was my eight o’clock longitude. Since then, and up till noon, I had made 23.7 miles of westing. What was my noon longitude? I followed the rule, turning to Traverse Table No. II. Entering the table, according to rule, and going through every detail, according to rule, I found the difference of longitude for the four hours to be 25 miles. I was aghast. I entered the table again, according to rule; I entered the table half a dozen times, according to rule, and every time found that my difference of longitude was 25 miles. I leave it to you, gentle reader. Suppose you had sailed 24 miles and that you had covered 3.5 miles of latitude, then how could you have covered 25 miles of longitude? Even if you had sailed due west 24 miles, and not changed your latitude, how could you have changed your longitude 25 miles? In the name of human reason, how could you cover one mile more of longitude than the total number of miles you had sailed?