CHEMICAL DEPARTMENT.

HOW TO IMITATE GOLD.--Take the following metals and melt them in a
covered crucible; sixteen ounces Virgin Platina, twenty-four ounces
pure copper.

SILVER.--Forty ounces Nickel, twenty ounces Copper, thirty ounces Block
Tin.

ARTIFICIAL GOLD.--Sixteen parts of Virgin Platina and seven parts
Copper and one of Zinc. Put these in a crucible with powdered charcoal,
and melt them together till the whole forms a mass, and are thoroughly
incorporated together. This also makes a gold of extraordinary beauty
and value. It is not possible by any tests that chemists know of to
distinguish it from pure virgin gold. All I ask of men is to use it for
good and lawful purposes, for the knowledge that I here give you will
bring you a rich and permanent reward without using it for unlawful
purposes.

MANHEIM, OR JEWELER'S GOLD.--Three parts of Copper, one part of Zinc,
and one part of Block Tin. If these are pure and melted in a covered
crucible containing charcoal, the resemblance will be so good the best
judges cannot tell it from pure gold without analyzing it.

BEST PINCHBACK GOLD.--Five ounces of pure Copper and one ounce of Zinc.
This makes gold so good in appearance that a great deal of deception by
its use in the way of watches and jewelry has been successfully
practiced for several hundred years back.

SILVER FLUID.--For silvering brass and copper articles of every
description.--Take an ounce of precipitated Silver to half an ounce of
Cyanate of Potash and quarter of an ounce of Hyper Sulphate of Soda.
Put all into a quart of water, add a little whitening and shake before
using. Apply with a soft rag. This knowledge alone is worth one hundred
dollars.

ORIGINAL AND GENUINE SILVER PLATING.--Galvanism Simplified.--Dissolve
one ounce of Nitrate of Silver in Crystal in twelve ounces of soft
water. Then dissolve in the water two ounces of Cyanate of Potash.
Shake the whole together and let it stand until it becomes clear. Have
ready some half-ounce vials, and fill them half full with Paris White
or fine Whiting, then fill up the bottles with the liquid, and it is
ready for use. The Whiting does not increase the coating power; it only
helps to clean the articles and to save the silver fluid by half
filling the bottles. The above quantity of materials will only cost
about $1.50, so that the fluid will only cost about three cents a
bottle.

POWDER FOR CLEANING AND POLISHING TIN, BRITANNIA AND BRASSWAR