The same process is then
carried out upon the other faces, and the roughly-shapen block finished
with the hammer and chisel.
The Weight and Value of a Cubic Foot of
Solid Gold or Silver.--A cubic foot of gold weighs about 19,300 ounces,
and gold is worth $20.67 per ounce. Silver is worth $1.29 per ounce, and
a cubic foot weighs 10,500 ounces. Consequently the cubic foot of gold
would be worth $398,931, and the silver $13,545.
To Remove Spots on Brass.--Sulphuric acid will remove spots from brass
that will not yield to oxalic acid. It may be applied with a brush,
but great care must be taken that no drop of the acid shall come in
contact with the clothes or skin, as it is ruinous to garments and
cuticle. Bath brick or rottenstone may be used for polishing.
A Formula to Make a Good Shoe Dressing.--Gum shellac, 1/2 pound;
alcohol, 3 quarts; dissolve, and add camphor, 1-1/2 ounces; lampblack,
2 ounces. The foregoing will be found to give an excellent gloss,
and is especially adapted to any leather, the surface of which is
roughened by wear.
Receipts for Dyeing Cotton Fabric Red, Blue and Ecru.--Red: Muriate
of tin, two-thirds cupful, add water to cover goods; raise to boiling
heat; put in goods one hour; stir often; take out, empty kettle, put
in clean water with Nicaragua wood one pound; steep one-half hour at
hand heat, then put in goods and increase heat one hour, not boiling.
Air goods, and dip one hour as before. Wash without soap. Blue: For
three pounds goods, blue vitriol 4 ounces; boil few minutes, then dip
goods three hours; then pass them through strong lime water.
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