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Modern Magic: A Practical Treatise on the Art of Conjuring
·
Professor Hoffmann
637
The
angle
at
which
the
two
mirrors
should
be
set
cannot
be
determined
absolutely,
but
will
vary
according
to
the
distance
and
position
of
the
surrounding
drapery.
Some
performers
use
a
shawl
or
a
screen
of
cardboard
in
place
of
the
box,
but
we
doubt
whether
any
method
is
more
effective
than
that
above
described.
The
ghastly
illusion
of
the
so-called
“Decapitated
Head,”
which
drew
crowds
to
the
Polytechnic
some
few
years
since,
was
merely
the
“Sphinx”
in
a
less
pleasant
form.
THE
CABINET
OF
PROTEUS.--This
is
another
adaptation
of
the
principle
on
which
the
Sphinx
illusion
is
founded.
It
is
the
joint
invention
of
Messrs.
Pepper
and
Tobin,
by
whom
it
was
patented
in
1865.
The
first
steps
towards
a
patent
for
the
Sphinx
were
also
taken
in
the
same
year,
but
the
latter
invention
never
proceeded
beyond
provisional
protection.
The
Cabinet
of
Proteus
is
a
wooden
closet,
seven
to
eight
feet
in
height
by
four
or
five
feet
square,
supported
on
short
legs,
so
as
to
exclude
the
idea
of
any
communication
with
the
floor.
(See
Fig.
298.)
It
has
folding
doors,
and
an
upright
pillar
extends
from
top
to
bottom
of
the
interior,
at
about
the
centre
of
the
cabinet.
At
the
top
of
this
pillar,
in
front,
is
fixed
a
lamp,
so
that
the
whole
of
the
interior
is
brightly
illuminated.
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