How to Make Clear Impressions Of Hands
PRINTER's
ink, especially the kind employed by the police for fingerprints
in all cities, is the best means found for making good impressions
of hands.
You
can also buy ink at any establishment where they sell print
materials. At the same place get a gelatine roller, which
is generally fitted, in a metal frame with a wooden handle.
Next
get a few quires of white-coated paper about the size of
an ordinary sheet of typewriting paper. Coated or glazed
paper takes the best imprints. When you have obtained these
requisites go to any hardware store and get a rubber mat
about a quarter to a half inch thick what is called a ‘kneeling
mat’ will do very well. These are necessary to make a springy
cushion so that the fine lines come out clearly.
Place
a sheet of the coated white paper on the upper surface of
the rubber mat. Smooth out a small portion of the printers
ink by running the gelatine roller over it on a piece of
glass.
When
all is ready run the gelatine roller over the subject’s
left and right hands press them firmly down on the sheet
of paper, turn the hand over on the back and with the flat
part of the thumb press the paper lightly into the hollow
of the palm and wrist, peel off the sheet of paper, starting
from the fingers and you will find you have obtained a clear
impression of all the lines of the hand.
You
may at first find some difficulty with persons who have
a dry, acid skin, which may in many cases make the imprints
look spotted. This can be got over by first washing the
hands you are going to treat with warm water, drying them
thoroughly and sprinkling with a light dusting of some powder
like talc. If you have not got talc a little chalk will
do as well.
There
are many ways of removing the printer’s ink from the hands.
The simplest and best is to get a small tin of the powder
sold at all motor supply stores for cleaning oil and grease
off hands, rub this on the hands in hot water and the ink
will come off easily.