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Heroes of the Telegraph
·
John Munro
50
'"Hope
deferred
maketh
the
heart
sick."
It
is
true,
and
I
have
known
the
full
meaning
of
it.
Nothing
but
the
consciousness
that
I
have
an
invention
which
is
to
mark
an
era
in
human
civilisation,
and
which
is
to
contribute
to
the
happiness
of
millions,
would
have
sustained
me
through
so
many
and
such
lengthened
trials
of
patience
in
perfecting
it.'
Morse
did
not
invent
for
money
or
scientific
reputation;
he
believed
himself
the
instrument
of
a
great
purpose.
During
the
summer
of
1842
he
insulated
a
wire
two
miles
long
with
hempen
threads
saturated
with
pitch-tar
and
surrounded
with
india-rubber.
On
October
18,
during
bright
moonlight,
he
submerged
this
wire
in
New
York
Harbour,
between
Castle
Garden
and
Governor's
Island,
by
unreeling
it
from
a
small
boat
rowed
by
a
man.
After
signals
had
been
sent
through
it,
the
wire
was
cut
by
an
anchor,
and
a
portion
of
it
carried
off
by
sailors.
This
appears
to
be
the
first
experiment
in
signalling
on
a
subaqueous
wire.
It
was
repeated
on
a
canal
at
Washington
the
following
December,
and
both
are
described
in
a
letter
to
the
Secretary
of
the
Treasury,
December
23,
1844,
in
which
Morse
states
his
belief
that
'telegraphic
communication
on
the
electro-magnetic
plan
may
with
certainty
be
established
across
the
Atlantic
Ocean.
Startling
as
this
may
now
seem,
I
am
confident
the
time
will
come
when
the
project
will
be
realised.'
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