Copying Pad
White Gelatine four ounces, Water eight ounces, Glycerine
eight ounces, Gum Dextrine two ounces. Always use these same
proportions for any amount. Melt the Gelatine in the water at a gentle
heat, add to it the Glycerine, in which the Gum Dextrine has been
thoroughly incorporated. Now stir all together until thoroughly mixed
and then pour into pans of the desired size, to the depth of one-half
inch.
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Recipe for Ink to Be Used.--Violet Analine forty grains, Gum Arabic
twelve grains, Alcohol one-fourth ounce, Water one-half ounce. Dissolve
the Gum in the Water and Alcohol, then add the Analine. Shake in a
bottle from time to time until the Analine is dissolved.
To work the Copying Pad.--Write with ink on any good paper, press the
written surface on the pad and allow it to remain two minutes; then
take off and the writing will remain, from which impressions may be
taken by laying on plain paper, and smoothing with the hand. As soon as
the last impression is taken be sure and wash off with a wet sponge.