There are no carriage roads through the ditch country, and before the ditch was built, or bored, rather, there was no horse-trail. Hundreds of inches of rain annually, on fertile soil, under a tropic sun, means a steaming jungle of vegetation. A man, on foot, cutting his way through, might advance a mile a day, but at the end of a week he would be a wreck, and he would have to crawl hastily back if he wanted to get out before the vegetation overran the passage way he had cut. O’Shaughnessy was the daring engineer who conquered the jungle and the gorges, ran the ditch and made the horse-trail. He built enduringly, in concrete and masonry, and made one of the most remarkable water-farms in the world. Every little runlet and dribble is harvested and conveyed by subterranean channels to the main ditch. But so heavily does it rain at times that countless spillways let the surplus escape to the sea. CHAPTER IX A PACIFIC TRAVERSE!

And then, and later, I learned the details of the marvellous book Ernest Darling had written. Twelve years ago he lay close to death. He weighed but ninety pounds, and was too weak to speak. The doctors had given him up. His father, a practising physician, had given him up. Consultations with other physicians had been held upon him. There was no hope for him. Overstudy (as a school-teacher and as a university student) and two successive attacks of pneumonia were responsible for his breakdown. Day by day he was losing strength. He could extract no nutrition from the heavy foods they gave him; nor could pellets and powders help his stomach to do the work of digestion. Not only was he a physical wreck, but he was a mental wreck. His mind was overwrought. He was sick and tired of medicine, and he was sick and tired of persons. Human speech jarred upon him. Human attentions drove him frantic. The thought came to him that since he was going to die, he might as well die in the open, away from all the bother and irritation. And behind this idea lurked a sneaking idea that perhaps he would not die after all if only he could escape from the heavy foods, the medicines, and the well-intentioned persons who made him frantic. And now for another phase of the physics of surf-riding. All rules have their exceptions. It is true that the water in a wave does not travel forward. But there is what may be called the send of the sea. The water in the overtoppling crest does move forward, as you will speedily realize if you are slapped in the face by it, or if you are caught under it and are pounded by one mighty blow down under the surface panting and gasping for half a minute. The water in the top of a wave rests upon the water in the bottom of the wave. But when the bottom of the wave strikes the land, it stops, while the top goes on. It no longer has the bottom of the wave to hold it up. Where was solid water beneath it, is now air, and for the first time it feels the grip of gravity, and down it falls, at the same time being torn asunder from the lagging bottom of the wave and flung forward. And it is because of this that riding a surf-board is something more than a mere placid sliding down a hill. In truth, one is caught up and hurled shoreward as by some Titan’s hand.

“What do you use on them?” Martin asked like a flash. As the Snark sailed out through the reef, she had a cutter in tow. This was the craft that was to take Bihaura back to Tahaa—but not Tehei. I had yielded at last, and he was one of the crew of the Snark. When the cutter cast off and headed east, and the Snark’s bow turned toward the west, Tehei knelt down by the cockpit and breathed a silent prayer, the tears flowing down his cheeks. A week later, when Martin got around to developing and printing, he showed Tehei some of the photographs. And that brown-skinned son of Polynesia, gazing on the pictured lineaments of his beloved Bihaura broke down in tears. “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.