BOOK VIII.

293

right and to the left, and in this way passes through it the smaller pieces ofearth, sand, and broken rock. The larger pieces remain in the sieve, andthese are taken out, placed in a heap and put under the stamps. Themud, together with fine sand, coarse sand, and broken rock, which remainafter the water has been drawn out of the tub, is removed by an iron shoveland washed in the sluice, about which I will speak a little later.

The Bohemians use a basket a foot and a half broad and half a foot deep,bound together by osiers. It has two handles by which it is grasped, whenthey move it about and shake it in the tub or in a small pool nearly fullof water. All that passes through it into the tub or pool they take out andwash in a bowl, which is higher in the back part and lower and flat in thefront; it is grasped by the two handles and shaken in the water, the lighterparticles flowing away, and the heavier and mineral portion sinking to thebottom.

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A —Basket. B —Its handles. C —Dish. D —Its back part. E —Its front part.

F —Handles of same.

Gold ore, after being broken with hammers or crushed by the stamps,and even tin ore, is further milled to powder. The upper millstone, which