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Modern Magic: A Practical Treatise on the Art of Conjuring
·
Professor Hoffmann
608
The
top
of
every
conjuring
table
should
be
covered
with
woollen
cloth,
not
only
to
prevent
the
clatter
which
would
be
occasioned
by
the
placing
of
objects
upon
the
bare
wood,
but
to
conceal
the
presence
of
the
traps
and
pistons.
The
cloth
used
should,
for
this
latter
reason,
be
of
two
colours,
and
of
a
tolerably
intricate
pattern,
as
the
outline
of
the
traps
will
be
thereby
rendered
much
less
perceptible;
indeed,
if
the
pattern
of
the
cloth
be
a
favourable
one
for
the
purpose,
the
traps
should
be,
by
gas-light,
absolutely
invisible.
The
cloth
should
be
glued
over
the
top
of
the
table
after
the
manner
of
a
card-table;
the
upper
surface
of
the
traps
being
first
roughed
slightly,
to
make
the
glue
adhere
to
the
metal.
When
the
glue
is
thoroughly
dry
(but
not
until
then)
the
cloth
may
be
cut
along
the
outline
of
the
traps
with
a
very
sharp
penknife,
and
small
holes
bored
to
allow
of
the
upward
passage
of
the
piston
rods.
As
it
is
necessary
in
placing
a
mechanical
piece
upon
the
table,
to
do
so
exactly
over
the
pistons,
it
is
well
to
have
a
couple
of
wire
points
projecting
upwards
a
quarter
of
an
inch
or
so
from
the
surface
of
the
table,
in
such
positions
that
if
the
piece
of
apparatus
rests
firmly
against
these
(which
the
performer
can
tell
instantly
by
feel)
it
must
necessarily
be
in
proper
position.
Where
“wrist”
traps
are
used,
the
cloth
need
not
be
cut
out
round
the
little
oblong
slab
marked
c
in
Figs.
263,
264,
but
the
cloth
should
be
without
glue
over
this
particular
spot,
and
for
half
an
inch
round
it
on
either
side.
The
cloth
will
by
this
arrangement
be
found,
without
cutting,
to
stretch
sufficiently
over
c
to
allow
of
the
proper
working
of
the
trap.
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