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1
435
Her Majesty's Mails
·
William Lewins
279
It
is
true
that
the
train
will
not
stop
till
the
county
of
Warwickshire
is
reached;
but
the
intervening
country
is
provided
for
nevertheless--arrangements
having
been
made
that
at
all
the
towns
we
pass
the
exchange
of
letter-bags
shall
be
effected
by
means
of
machinery
whilst
the
train
is
progressing
at
its
usual
speed.
The
contrivance
in
question
deserves
minute
description.[158]
The
machinery
is
not
worked
in
the
post-office,
but
in
an
adjoining
van.
By
means,
however,
of
a
substantial
iron
gangway,
the
two
carriages
are
connected,
so
that
we
can
pass
easily
from
one
to
the
other
and
see
the
operation
itself.
As
we
do
so
we
are
evidently
nearing
some
town,
for
the
sorter
is
at
that
moment
engaged
in
peering
out
of
the
window
into
the
darkness
in
search
of
some
familiar
object,
such
as
bridge,
river,
or
cluster
of
trees,
by
means
of
which
he
is
enabled
to
tell
his
whereabouts
with
almost
mathematical
precision.
Whilst
he
is
busy
finding
his
position
we
will
take
the
time
to
explain,
that
the
machinery
is
arranged
so
as
to
secure,
simultaneously
in
most
cases,
both
the
receipt
and
the
despatch
of
bags.
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