A—CROSS GROOVES. B—TUB SET UNDER THE SLUICE. C—ANOTHER
TUB.
is to be washed, is thrown into the head and stirred with a wooden scrubber;
in this way the water carries the light particles of gold on to the canvas,
and the heavy ones sink in the pockets, and when these hollows are full, the
head is removed and turned over a tub, and the concentrates are collected
and washed in a bowl. Some people make use of a sluice which has square
pockets with short vertical recesses which hold the particles of gold. Other
workers use a sluice made of planks, which are rough by reason of the very
small shavings which still cling to them; these sluices are used instead of
those with coverings, of which this sluice is bare, and when the sand is washed,
the particles of gold cling no less to these shavings than to canvas, or skins, or
cloths, or turf. The washer sweeps the sluice upward with a broom, and
when he has washed as much of the sand as he wishes, he lets a more abundant
supply of water into the sluice again to wash out the concentrates, which he
collects in a tub set below the sluice, and then washes again in a bowl. Just
as Thuringians cover the sluice with canvas, so some people cover it with
the skins of oxen or horses. They push the auriferous sand upward with a
wooden scrubber, and by this system the light material flows away with the
water, while the particles of gold settle among the hairs; the skins are
afterward washed in a tub; and the concentrates are colleced in a bowl.
is to be washed, is thrown into the head and stirred with a wooden scrubber;
in this way the water carries the light particles of gold on to the canvas,
and the heavy ones sink in the pockets, and when these hollows are full, the
head is removed and turned over a tub, and the concentrates are collected
and washed in a bowl. Some people make use of a sluice which has square
pockets with short vertical recesses which hold the particles of gold. Other
workers use a sluice made of planks, which are rough by reason of the very
small shavings which still cling to them; these sluices are used instead of
those with coverings, of which this sluice is bare, and when the sand is washed,
the particles of gold cling no less to these shavings than to canvas, or skins, or
cloths, or turf. The washer sweeps the sluice upward with a broom, and
when he has washed as much of the sand as he wishes, he lets a more abundant
supply of water into the sluice again to wash out the concentrates, which he
collects in a tub set below the sluice, and then washes again in a bowl. Just
as Thuringians cover the sluice with canvas, so some people cover it with
the skins of oxen or horses. They push the auriferous sand upward with a
wooden scrubber, and by this system the light material flows away with the
water, while the particles of gold settle among the hairs; the skins are
afterward washed in a tub; and the concentrates are colleced in a bowl.
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