A—LAUNDER. B—CROSS TROUGH. C—TWO SPOUTS. D—BOXES.
E—PLATE.
F—
GRATING. G—SHOVELS. H—SECOND CROSS TROUGH. I—STRAKE. K—WOODEN
SCRUBBER. L—THIRD CROSS TROUGH. M—LAUNDER. N—THREE-TOOTHED RAKE.
and the water carries off the valueless sand into the creek. This method
of washing is most advantageous, for four men can do the work of washing
in two boxes, while the last method, if doubled, requires six men, for it requires
two boys to throw the material to be washed on to the plate and to stir it
with iron shovels; two more are required with wooden scrubbers to keep
stirring the sand, mixed with the tin-stone, under the plate, and to push it
toward the upper end of the box; further, two foremen are required
to clean the tin-stone in the way I have described. In the place of a plate
full of holes, they now fix in the boxes a grating made of iron wire as
thick as the stalks of rye; that these may not be depressed by the weight
and become bent, three iron bars support them, being laid crosswise under
neath. To prevent the grating from being broken by the iron shovels with
which the material is stirred in washing, five or six iron rods are placed on
top in cross lines, and are fixed to the box so that the shovels may rub them
instead of the grating; for this reason the grating lasts longer than the
GRATING. G—SHOVELS. H—SECOND CROSS TROUGH. I—STRAKE. K—WOODEN
SCRUBBER. L—THIRD CROSS TROUGH. M—LAUNDER. N—THREE-TOOTHED RAKE.
and the water carries off the valueless sand into the creek. This method
of washing is most advantageous, for four men can do the work of washing
in two boxes, while the last method, if doubled, requires six men, for it requires
two boys to throw the material to be washed on to the plate and to stir it
with iron shovels; two more are required with wooden scrubbers to keep
stirring the sand, mixed with the tin-stone, under the plate, and to push it
toward the upper end of the box; further, two foremen are required
to clean the tin-stone in the way I have described. In the place of a plate
full of holes, they now fix in the boxes a grating made of iron wire as
thick as the stalks of rye; that these may not be depressed by the weight
and become bent, three iron bars support them, being laid crosswise under
neath. To prevent the grating from being broken by the iron shovels with
which the material is stirred in washing, five or six iron rods are placed on
top in cross lines, and are fixed to the box so that the shovels may rub them
instead of the grating; for this reason the grating lasts longer than the