"I think I have made it abundantly clear that I am no good at tests of that sort," Jack said, "but these kolis are another matter. They will wander the hills for weeks and look at every single tree. They’ll send a child scampering up a promising teak to inspect the place where a bough branches off from the trunk, for that is where the grain-lines of the wood curve just so—and, too, it’s where the wood is strongest and heaviest. When they’ve found the right tree, down it comes! And they move the whole village there until the wood has been shaped and the timbers delivered."