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Modern Magic: A Practical Treatise on the Art of Conjuring
·
Professor Hoffmann
590
With
regard
to
the
umbrella,
the
reader
will
readily
conjecture
that
an
exchange
is
effected,
but
the
mode
of
effecting
it
varies.
If
the
ordinary
glazed
case
is
used,
the
umbrella
is
exchanged
bodily
for
another,
similarly
encased,
placed
beforehand
on
the
servante.
This,
however,
requires
some
little
dexterity,
as
an
umbrella,
from
its
length,
is
an
awkward
article
to
exchange;
and
this
has
led
to
the
employment
of
cases
specially
constructed
to
effect
the
change.
That
most
frequently
used
is
an
upright
pillar
of
zinc
or
tin,
oval
in
form,
and
open
at
the
top,
and
so
constructed
as
to
stand
upright
without
support
(see
Fig.
259).
It
is
divided
vertically
into
two
compartments,
in
one
of
which
is
placed
beforehand
the
second
umbrella.
Of
course
no
one
can
be
permitted
to
examine
or
even
look
into
the
case,
which
is
a
serious
drawback
to
the
effect
of
the
trick.
There
is,
however,
another
form
of
case
sometimes
employed,
which
is
a
trifle
less
objectionable.
This
is
a
wooden
tube,
about
three
feet
long,
and
three
and
a
half
inches
square.
(See
Fig.
260.)
Like
the
case
already
described,
it
is
closed
at
the
bottom
and
open
at
the
top,
and
divided
vertically
into
two
compartments,
a
and
b.
One
or
other
of
these,
however,
is
always
closed
by
the
flap
c,
which
by
virtue
of
a
spring
is
normally
compelled
to
take
the
position
shown
in
the
figure,
thus
closing
compartment
b.
When
required
for
use,
the
second
umbrella
is
placed
in
compartment
a,
and
the
flap
c
drawn
back
(as
shown
by
the
dotted
line)
so
as
to
close
a,
in
which
position
it
is
held
by
a
little
catch.
The
performer
hands
the
genuine
umbrella
for
inspection
to
one
of
the
spectators,
with
a
request
that
he
will
himself
place
it
in
the
case.
As
soon
as
he
has
done
so,
the
performer
by
a
movement
of
his
forefinger
draws
back
the
catch,
and
releases
c,
which
flying
back
to
the
opposite
position,
shuts
in
the
genuine
umbrella,
and
reveals
the
substitute.
When
this
apparatus
is
employed,
the
supposed
restoration
of
the
umbrella
is
omitted.
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