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The sand is then covered with the water, carefully crumbled down and shaken in the calabash, and the lighter parts thrown out, till all that remains is a black substance, called gold-rust. The shaking is then repeated, and the grains of gold are sought out.
Two pounds of gravel yield about twenty-three particles of gold, some of which are very small; and the bulk of gold-rust is about forty times that of the gold. The washing only takes place at the time of the rains. They next proceeded along the mountains of Konkodoo to Dindikoo, where they saw a number of gold-pits, sunk about twelve feet deep, with notches in the sides for steps.
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