Considerably to Grenville's amazement, the molding of jugs, some crucibles, and other essential vessels suggested by the presence of the clay, was not at all a simple matter. His material, which at first was mixed too soft, was readily stiffened to a workable consistency, and the bases and first six inches or more of flaring walls of his pipkins had been fashioned as a child would fashion "pies." It was when he undertook to crimp and contract this flaring rim that the craftsmanship known to the potter required once again to be evolved. For a time the longer he wrought at the stubborn material the more completely Grenville was defeated by the clay. He discovered at last, as similar workmen in every age and clime have ultimately discovered, that potteries thus constructed by hand must be built up in rings, one ring at a time, especially where the walls draw in to an ever narrowing diameter. When, at length, this simple fact had been established--the first success having come to Elaine, whose feminine wit had been nimbler far than the man's--a highly respectable family of jugs and useful receptacles had rapidly come into being. Mid-afternoon of this busy day found Grenville engrossed with his labors. Despite the fact they had not yet dined on anything but fruit, he was preparing salt for meat. The shell he had found was full of water from the sea, evaporating rapidly in a bed of hot ashes and coals. This, however, was resigned to Elaine's efficient vigilance, while Sidney worked absorbingly to complete a number of small clay molds designed for the casting of tools. When, at length, the last of these was done and set aside to dry with the jugs and assorted vessels, he glanced briefly up at the sun. There were several hours of this blazing light remaining. Resolved in one moment to hasten to the jungle with his bow and the unfeathered arrows, which might be relied upon at easy range to fly sufficiently straight for all his purposes, Grenville determined in the next to make them a bit more certain. A branch and leaf from a freshly despoiled banana plant had suggested "feathers" for his shafts. It was the work of a moment only to cut out and trim a slender bit of the fibrous branch from which the leaf substance projected. The leaf part itself, which was rather tough, and considerably like a stiffened cloth in texture, he cut to shape no less quickly. Then, binding on each of the arrows a trio of these improvised "rudders," he took up his club, informed Elaine he might be absent half an hour, and descended at once to the clearing.