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Modern Magic: A Practical Treatise on the Art of Conjuring
·
Professor Hoffmann
565
The
contrivance
last
above
described
is
the
invention
of
Robert-Houdin,
slightly
simplified,
however,
inasmuch
as
he
employed,
in
place
of
the
needle,
a
little
wire
bolt
working
on
a
metal
plate
attached
to
the
back
of
the
waistcoat;
but
the
principle
in
either
case
is
precisely
the
same.
THE
MYSTERIOUS
SALVER.--This
is
a
tin
tray
(see
Fig.
250),
ornamentally
japanned,
and
of
about
twelve
inches
in
diameter.
There
is
a
space
of
about
three-quarters
of
an
inch
between
the
upper
and
under
surfaces
of
the
tray,
at
one
side
of
which,
under
cover
of
the
curled
rim,
is
an
opening
of
about
three
inches
in
width.
Within
this
opening,
so
placed
as
to
be
within
easy
reach
of
the
fingers
of
any
person
holding
the
tray,
are
two
wire
hooks,
marked
a
and
b
in
the
figure.
On
gently
pulling
hook
a,
a
little
hammer
c
rises
up
at
right
angles
to
the
surface
of
the
tray,
again
falling
back
by
the
action
of
a
spring
as
soon
as
the
pull
is
relaxed.
On
pulling
b,
a
similar
movement
is
communicated
to
a
sort
of
ladle
d,
sunk
in
the
surface
of
the
tray,
and
rising
up
in
a
direction
parallel
to
that
of
the
little
hammer
already
mentioned.
This
ladle
has
a
flat
tin
cover,
hinged
very
loosely
upon
its
outer
edge
(so
as
to
open
of
its
own
accord
when
the
ladle
passes
the
perpendicular
position),
and
japanned
in
such
manner
as
to
represent
one
of
a
circle
of
medallions
forming
part
of
the
pattern
of
the
tray,
and
therefore
little
likely
to
attract
attention.
If
any
small
article
be
beforehand
placed
in
the
ladle,
and
b
be
pulled,
the
article
will
naturally
be
flung
out
upon
the
surface
of
the
tray.
In
practice,
however,
the
salver
is
always
used
in
conjunction
with
a
little
glass
tumbler,
about
three
inches
in
height,
which,
being
placed
upon
the
medallion
opposite
to
that
which
forms
the
cover
of
the
ladle,
the
contents
of
the
latter
fall
into
the
glass
instead
of
upon
the
tray.
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