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Modern Magic: A Practical Treatise on the Art of Conjuring
·
Professor Hoffmann
63
THE
BRIDGE.--The
object
of
the
bridge
is
to
enable
the
performer,
with
ease
and
certainty,
to
cut
or
otherwise
divide
the
pack
at
a
given
card.
It
is
made
as
follows:
Holding
the
cards
in
the
left
hand,
with
the
thumb
across
the
pack,
the
performer
covers
them
for
an
instant
with
his
right
hand,
as
if
about
to
make
the
pass.
Grasping
the
pack
between
the
thumb
and
second
finger
of
this
hand,
he
bends
the
whole
of
the
cards
slightly
inwards
over
the
first
finger
of
the
left
hand,
immediately
afterwards
bending
the
upper
or
outward
portion
of
the
pack
backwards
in
the
opposite
direction.
The
effect
of
the
double
movement
is
that
the
two
halves
of
the
pack
are
bent
in
a
double
concave
form,
thus
)(,
though
in
a
much
less
degree.
If
the
cards
be
now
cut,
the
concave
portions,
instead
of
being,
as
at
first,
back
to
back,
will
be
face
to
face,
thus
(),
leaving
in
the
centre
of
the
pack
an
elliptical
opening,
of
a
maximum
width
of
about
an
eighth
of
an
inch.
This
slight
hiatus
in
the
middle
will
generally
cause
a
person
who
is
invited
to
cut
to
do
so
at
that
particular
point,
and
will
in
any
case
enable
the
performer
either
to
cut
or
to
make
the
pass
at
that
point
with
the
greatest
ease.
The
cases
in
which
the
bridge
may
be
employed
with
advantage
will
be
more
particularly
indicated
when
we
come
to
practically
apply
the
processes
already
described,
but
it
has
a
special
use
which
may
be
at
once
mentioned.
It
will
be
remembered
that
some
of
the
false
shuffles
already
described
leave
the
cards
as
if
cut,
though
they
in
other
respects
retain
their
pre-arranged
order;
and
it
therefore
becomes
necessary
to
again
cut
them
at
a
particular
point,
in
order
to
bring
them
back
to
their
original
condition.
This
point
is
ascertained
by
the
use
of
the
bridge.
The
cards
are
first
bent
in
the
manner
above
described;
the
false
shuffle
is
then
made,
leaving
the
cards
in
effect
cut;
but
by
again
cutting
or
making
the
pass
at
the
bridge,
they
are
once
more
precisely
as
at
first.
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