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Modern Magic: A Practical Treatise on the Art of Conjuring
·
Professor Hoffmann
301
A
still
later
improvement
is
that
which
is
known
as
THE
TRAY
OF
PROTEUS.--The
tray
to
which
the
inventors
(Messrs.
Hiam
&
Lane)
have
given
the
above
high-sounding
title,
is
the
latest,
and
not
the
least
ingenious,
of
the
series
of
magical
trays.
The
tray
in
question
will
not
only
change,
but
add,
subtract,
or
vanish
coins,
under
the
very
eyes
of
the
spectators.
In
form
it
is
an
oblong
octagon,
measuring
eight
inches
by
six,
and
standing
about
three-quarters
of
an
inch
high.
(See
Fig.
99.)
It
is
divided
across
the
centre,
and
one
half
of
the
centre
portion
is
moveable
in
the
same
manner
as
in
the
case
of
the
tray
last
described,
save
that
in
this
instance
the
depth
between
the
upper
and
under
surface
of
the
tray
being
greater,
this
moveable
portion
is
depressible
to
a
proportionately
greater
depth.
The
opposite
or
fixed
side
of
the
tray
is
divided
horizontally
(see
Fig.
100,
representing
a
longitudinal
section)
into
two
levels
or
platforms,
a
and
b,
the
lower,
b,
having
a
raised
edge.
Where
the
tray
is
to
be
used
for
the
purpose
of
“changing,”
the
coins
to
be
substituted
are
placed
in
a
row
on
the
upper
platform,
a.
The
genuine
coins
are
placed
by
the
performer,
holding
the
tray
as
indicated
in
Fig.
99,
on
the
moveable
flap,
c.
Slightly
lowering
the
opposite
end
of
the
tray,
he
presses
the
button
d,
thus
sloping
the
flap
c,
and
the
coins
naturally
slide
into
b.
Still
keeping
the
flap
open,
he
now
tilts
up
the
opposite
end
of
the
tray.
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