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- Жюль Верн
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- Путешествие на Луну
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During
the
eight
months
which
were
employed
in
the
work
of
excavation
the
preparatory
works
of
the
casting
had
been
carried
on
simultaneously
with
extreme
rapidity
.
A
stranger
arriving
at
Stones
Hill
would
have
been
surprised
at
the
spectacle
offered
to
his
view
.
At
600
yards
from
the
well
,
and
circularly
arranged
around
it
as
a
central
point
,
rose
1,200
reverberating
ovens
,
each
six
feet
in
diameter
,
and
separated
from
each
other
by
an
interval
of
three
feet
.
The
circumference
occupied
by
these
1,200
ovens
presented
a
length
of
two
miles
.
Being
all
constructed
on
the
same
plan
,
each
with
its
high
quadrangular
chimney
,
they
produced
a
most
singular
effect
.
It
will
be
remembered
that
on
their
third
meeting
the
committee
had
decided
to
use
cast
iron
for
the
Columbiad
,
and
in
particular
the
white
description
.
This
metal
,
in
fact
,
is
the
most
tenacious
,
the
most
ductile
,
and
the
most
malleable
,
and
consequently
suitable
for
all
moulding
operations
;
and
when
smelted
with
pit
coal
,
is
of
superior
quality
for
all
engineering
works
requiring
great
resisting
power
,
such
as
cannon
,
steam
boilers
,
hydraulic
presses
,
and
the
like
.
Cast
iron
,
however
,
if
subjected
to
only
one
single
fusion
,
is
rarely
sufficiently
homogeneous
;
and
it
requires
a
second
fusion
completely
to
refine
it
by
dispossessing
it
of
its
last
earthly
deposits
.
So
long
before
being
forwarded
to
Tampa
Town
,
the
iron
ore
,
molten
in
the
great
furnaces
of
Coldspring
,
and
brought
into
contact
with
coal
and
silicium
heated
to
a
high
temperature
,
was
carburized
and
transformed
into
cast
iron
.
After
this
first
operation
,
the
metal
was
sent
on
to
Stones
Hill
.
They
had
,
however
,
to
deal
with
136,000,000
pounds
of
iron
,
a
quantity
far
too
costly
to
send
by
railway
.
The
cost
of
transport
would
have
been
double
that
of
material
.
It
appeared
preferable
to
freight
vessels
at
New
York
,
and
to
load
them
with
the
iron
in
bars
.
This
,
however
,
required
not
less
than
sixty
-
eight
vessels
of
1,000
tons
,
a
veritable
fleet
,
which
,
quitting
New
York
on
the
3rd
of
May
,
on
the
10th
of
the
same
month
ascended
the
Bay
of
Espiritu
Santo
,
and
discharged
their
cargoes
,
without
dues
,
in
the
port
at
Tampa
Town
.
Thence
the
iron
was
transported
by
rail
to
Stones
Hill
,
and
about
the
middle
of
January
this
enormous
mass
of
metal
was
delivered
at
its
destination
.
It
will
easily
be
understood
that
1,200
furnaces
were
not
too
many
to
melt
simultaneously
these
60,000
tons
of
iron
.
Each
of
these
furnaces
contained
nearly
140,000
pounds
weight
of
metal
.
They
were
all
built
after
the
model
of
those
which
served
for
the
casting
of
the
Rodman
gun
;
they
were
trapezoidal
in
shape
,
with
a
high
elliptical
arch
.
These
furnaces
,
constructed
of
fireproof
brick
,
were
especially
adapted
for
burning
pit
coal
,
with
a
flat
bottom
upon
which
the
iron
bars
were
laid
.
This
bottom
,
inclined
at
an
angle
of
25
degrees
,
allowed
the
metal
to
flow
into
the
receiving
troughs
;
and
the
1,200
converging
trenches
carried
the
molten
metal
down
to
the
central
well
.
The
day
following
that
on
which
the
works
of
the
masonry
and
boring
had
been
completed
,
Barbicane
set
to
work
upon
the
central
mould
.
His
object
now
was
to
raise
within
the
center
of
the
well
,
and
with
a
coincident
axis
,
a
cylinder
900
feet
high
,
and
nine
feet
in
diameter
,
which
should
exactly
fill
up
the
space
reserved
for
the
bore
of
the
Columbiad
.
This
cylinder
was
composed
of
a
mixture
of
clay
and
sand
,
with
the
addition
of
a
little
hay
and
straw
.
The
space
left
between
the
mould
and
the
masonry
was
intended
to
be
filled
up
by
the
molten
metal
,
which
would
thus
form
the
walls
six
feet
in
thickness
.
This
cylinder
,
in
order
to
maintain
its
equilibrium
,
had
to
be
bound
by
iron
bands
,
and
firmly
fixed
at
certain
intervals
by
cross-clamps
fastened
into
the
stone
lining
;
after
the
castings
these
would
be
buried
in
the
block
of
metal
,
leaving
no
external
projection
.
This
operation
was
completed
on
the
8th
of
July
,
and
the
run
of
the
metal
was
fixed
for
the
following
day
.
"
This
fete
of
the
casting
will
be
a
grand
ceremony
,
"
said
J.
T.
Maston
to
his
friend
Barbicane
.
