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Modern Magic: A Practical Treatise on the Art of Conjuring
·
Professor Hoffmann
732
In
spite
of
the
exposure
of
the
tricks
played
by
mediums,
there
are
still
persons
to
be
found
who
really
believe
that
the
tambourines,
accordions,
guitars,
etc.,
are
played
by
spirit
hands,
and
that
beings
from
the
invisible
world
make
a
special
journey
at
every
spiritual
séance.
Messrs.
Maskelyne
and
Cooke
have,
in
their
popular
entertainment,
done
a
great
deal
to
destroy
the
belief
in
the
spiritual
world
founded
upon
the
tests
offered
by
mediums,
and
have
clearly
shown
that
the
tricks
which
the
mediums
assert
can
only
be
done
by
spiritual
agency
might
be
performed
by
any
ingenious
person.
Another
trick
which
has
been
performed
by
Messrs.
Maskelyne
and
Cooke
is
that
known
as
the
spiritual
musical
box.
An
oblong
piece
of
glass
is
suspended
by
means
of
four
cords
hanging
from
the
ceiling,
and
upon
this
glass
is
placed
a
musical
box.
At
the
word
of
command
the
box
begins
to
play,
and
when
desired
by
the
exhibitor
or
one
of
the
audience,
it
suddenly
ceases.
The
effect
is
really
marvellous,
but
the
secret
of
the
trick
is
very
simple.
In
the
box
there
is
placed
a
balance
lever,
which,
when
the
glass
is
in
the
slightest
degree
tilted,
arrests
the
fly-fan,
and
thus
prevents
the
machinery
from
moving.
When
the
performer
gives
the
word
of
command,
the
glass
is
made
level,
and,
the
fly
fan
being
released,
the
machinery
moves,
and
a
tune
is
played.
When
commanded
to
stop,
the
cord
on
either
side
is
slightly
pulled,
the
balance
lever
drops,
the
fly
fan
is
arrested,
and
the
music
ceases.
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