To Give Silver The Colour Of Gold
Dissolve in common aqua fortis as much silver as you please. To eight
ounces of silver, take four ounces of hepatic aloes, six ounces of
turmeric, and two ounces of prepared tutty, that has been several
times quenched in urine. Put these to the solution of the silver; they
will dissolve, but rise up in the glass like a sponge; this glass must
therefore be large, to prevent running over. Then draw it off, and you
will have ten ounces of silver as yellow as gold.
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To Discover The Card Which Is Drawn By The Throw Of A Die
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headed according to fancy, and tied on their sticks, get some sheet tin, and cut it into round pieces about three or four inches diameter; then on the stick of each rocket, under the mouth of the case, fix one of these pieces of tin 16 inches from the... To Make An Eolian Harp
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There is a method of producing artificial coruscations, or sparkling fiery meteors, which will be visible, not only in the dark but at noon-day, and that from two liquors actually cold. The method is this:--Fifteen grains of solid phosphorus are to ... To Make Beautiful Transparent Coloured Water
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If you wish to take the impression of any coin, medal, &c., previously anoint it with oil; then lay the horn shavings over it in its softened state. When dry, the impression will be sunk into the horn; and this will serve as a mould to re-produce, e... To Make Pictures Of Birds With Their Natural Feathers
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