Afseui ucid 18
Heated
'
Heated
with
protoxide
'
oipotMunm
43
I
Heated
with
fluorido
,
,
soda
or
potasli,
1
and
PATTINSOirS
PR0CEB8.
HiBtoty
Description
Sheltiko
Of
regulua
in
the
slag
110
SHELTINQ
OF
OXIDIZED
I
Silica
.
Litharge
SIB
i
Han
in
Conlurie'ii
]
very
distinct
octahedral
d'yetnlH
the
pres-ure
upon
the
degree
of
crushing,
the
case
of
can
hardly
be
was
from
C60
to
337,
the
extremes
being
331
and
341.
The
same
lead.
Charge
of
3175
kil.
(7000-9lbs.).
In
eight
experiments
he
mean
pure
lead
(from
carbonat*),
elted
Tinder
1 minute
access
of
air
will
to
following
it
is
0-03140,
C.
and
other
rainbow. The action is
necessary
lo
keep
the
air
constantly
acting
upon
slowly
dissolved
by
long
boiling
in
hydrochloric
cid,
lead,
lead
containing
2%
of
antimony,
an
alloy
composed
of
90%
DiOKiDB
OB
Suboxide
of
Leao.
to
burn
prepamtion.
protoxide,
hon
production
in
the
procesB
of
refining
silver
by
lead.
Litharge
is
occasionally
et
di'i'on])KiBedy
not
saturated,
it
is
only
after
cooling
that
any
tablew
;
 
place
jwr
w;
or
platinum.
The
term
 very
on
this
subject
Titanic
following
of
mixtures
litharge.
of
litharge
with
litharge
n
:
sepa-
The
next
experiment
was
made
by
Smith.
A
mixture
of
anti-ony
in
powder
and
litharge
;
rtilnees
in
a
covered
clay
oruciblo
and
melted
readily.
The
qtiantiticH
taken
were
194
grainH
antimony
and
liTZ
lithat^.
product
conaUted
of
a
for
alloy?]
t
the bottom. Bcrthier remarks that if the tin had been oxi-ized
to
the
mnximum,
allthe
litharge
ould
litharge.
A
lithai^,
yielded
metallic
button
weighing
26'.'1
grammes,
and
a
very
liquid
slag,
com-act,
opaque,
granular
in
fracture,
and
greyishyellow.
If
onlyprotoxide
bismuth loees
weight
of
litharge,
ot
less
than
Zinc. Tn
volatilized,
produced.'
The
following
experiment
as
made
by
Smith.
intormixed with
accuracy
under
these
con-itions
of
crystallizednhydrousprotoxide
an
hour.
Crystals
on-inued
to
bo
depositeduring
many
a
in
a
appearance
from
that
prepared
by
Winkelblech's
process,
although
it
agrees
with
into nitrate uf
oijgen
and
protoxide
with
-j-th
f
its
weight
of
cane-sugar,
or
-Jth
of
grape-sugar.
It*'
sp. gr.
pro-uced
by
whole
of
the
lead
in
tiie
acetate
peroxide
peroxide
a
solution
con-
tainiiig
parts,
r
better
somewhat
more,
of
crystallized
peroxide,
hich
must
be
thoroughly
washed,
together
before
the
blowpipe,
forming
a
malleable
product,
which
by
molten
oxide
npon
a
white,
poroiis
mass.
According
to
Berthier,
assays
in
which
a
silioate
of
lead
may
be
reqnired,
31
explained,hereby
lead
is
set
free,
and
sulphnrons
cid
evolved.
The
reducing
action
of
sulphur
n
the silicate
silicate),
nd
strongly
heated
in
a
covered
Cornish
original
tate.
When
the
silicate
by
properly
egu-ating
the
temperature,
hollow
globules
ere
complete
in
direct
contact
by
volatilization
amounted
to
2'66%.
of lead in
may
of the lead could
besetting
not
so
heavy
as
No.
Jo.
of
litharge,
lithat^
is
added.*
red-lead,
sen-ibly,
and
in
a
degreeproportionat-e
o
temperature;
protoxide
of
lead,
the
evolution
the
sulphide,
nd
converts
it
into
sulphate,
sulphur
are
produced.
Sulphide
f
at
the
upper
part
III.
The
product
and Pb'S
galena. Sulphide
of lead
quality
and
galena
yielding
by
assay
81%
of
lead,
were
cover-ng
the
metol
waa
removed,
after
which,
as
cooling
occurred,
a
little
of IwL Piadnct Ho. i. l n dixt No. t.
Protoxide
j
may
be
coudensed,
sul-hate
;
PbO,SO'
of the crucible.
oxygen
be
1*
Booe,
cx Tered
materials
on
reduced
to
Any sulphate
f lead
as
yellow
basic
sulphate.
;
ceases
to
be
emitted,
and
if
the
temperature
be
so
regulated
of free
blown
upon,
galena
were
heated
powder
yet
contact with
sulphide
f
lead
some
brilliant
cubical
crystals
for
the
space
sulphide
f
lea ?
pui
e
sulphide
galena
heated
in
a
retort
with
at
least
half
its
weight
of
obviously
ary
accord-ng
to
acid.
sulphide
at
by weight
sonJa,
he ubtained n
dii'ectly
elted
nitrogen
ia
evolved
one
experiment
with
black
oxide
of
manganei.e
prot-xide
of
manganese.
PbS-|-2MnO'=
of
their
car-onates
ia
promotedby
tho
presence
to
reduce
or
rather
to
prevent
the
brought
in
contact
with
sulphide
upon
galena
canuot
exist
galena
imbedded
in
hydrate
a
biasqued
Htated
to
have
been
clanged
nto
sulphide.
The
(sulphide
f
calcium)
and
were
a
good
red-heat
complete
reduction
occurs
crucible,
it
is
there
in
contact
with
the
reducing
agent
sulphide
and
common
was
heated
during
1^
hour
in
an
assay
muffle,which,
was
bo
to
XI.
incluaive,
theory
would
indicate,
had
quantity
V,,VI.,
and
VII.,
most
lead
was
reduced
for
1
part
of
iron,
the
extremes
being
3'4
and
the
regulus,
otwithstanding
euggests
the
following
equationas
approximately
ipressivo
two
experiments
iron is
character,
but
having
been
previously
overed
with
small
pieces
contents
were
loft
to
cool
in
ratios
the
upper
layer
r
regulus
The
followingexperiment
as
made
by
the
galena,
yer
which
pieces
of
charcoal
were
placed
and
experiment.
The
discrepancy
is
probably
due
reduced,
but
owing
to
the
infusibility
obviate the
galena.
contact
product
-was
practically
omogeneous.
The
pieces
of
charcoal,
; FV,
the
materials
being
168
grains
of
liquated
Borneo
sulphide
f
antimony
galena.'
and the
reaction,
not
total
quantity
in
pure
sulphide
was
free
borax
for
common
salt,
globules.
VII.
globnlea
avoirdupois
ere
intimately
latter,
it remained
waa
rednoed
to
powder
which
waa
ash-grey.
1000
grains
to
oool
alowly.
TioTisly
eacribed,
very
tops
of
tho
larger
to
the
level
of
the
tops
of
the
smaller
pots.
piled
and
the
changed
white-
lead
paint.
The
goodness
of
quality
and
;
probably
of
some
of
the
organic
lead,
qnently
chemically
ombined
has been
appliesequally
o
from
purplish
to
orange
in
proportion
o
2(PbO,CO')-j-PbO,HO.
One
part
proportion
hat
gas,
dissolves
alloy,
;
added and stirred in. Tho addition of the arsenic seemed
to
reduce
the
temperature
of
the
lead
conaidoraVily,
Absekttes
of
Fbotoxide
or
Lxad.
PbO.ABO*
and
2PbO,AHO'.
They
protoxide
f
lead
are
potash
or
soda.
They
are
completelydecomposed
when
which
arsenious
acid,
which
by
a
in
excess,
phosphide
acid in the
two
layers,
the
upper
one
of
phosphate
flead
which
was
crystalline,
ull
and
of
a
dirty
green
colour,
and
or
of
a
thin
liquid,
hich
neither
runs
through
nor
chlorides.'
to
reenlt
from
acid
were
tried,
sulphate
poflseBsed
;
lead,
known
as
oxy-
was a
operation.
their
way
is
a
white,
heavy,
insoluble
powder,
to
 
a
highlyoxidizing
ubstance.
only,
equivalent
to
equivalent
or
white-lead
maj'
to
an
aqueous
solution
of
neutral
nitrate,
in that
protoxide
producedby
digesting
n
alloy
of
lead
and
antimony
and washed with
 
depeudti
pon
the
quantity
after
the
manner
practiced
But
this
part
and
ground,
;
from it lead and
as
solid,
very
fusible,
very
brittle,
and
very
fine-grained
cream
of
tartar,
a
was
observed
to
be
dispersed
grains
of
finely-granulated
next
day.
There
be
produced
soap.'
I.
p.
241.
state.
The
crystal-ization
two
experiments,
galena
having
been
derived
fVom
nleiia ii
p.
97,
may
bo
so
deposited,
s
it
has
their association
clearly
een
deposited
carefully
ought
Professor
Norden-
skiold
a
specimen
of
galena
containing
considerable
quantity
of
gold
diS'used
through
or
carboniferons
limestone
lodes,
has
often
yielded
large
amounts
of
ore,
as
more or
copper-
beuring
veius;
and
usually
an
east
and
west
direction,
coursing
in
some
its
southern
part
or
rib
a
galena
comparatively
oor
in
silver,
whilst
the
northern,
at
the
distance
of
a
few
feet,
is
highlyargentiferous,
nd
sometimes
shows
a
the firatTolmne of
tongs,
B
are
shown
in
fig.
biistlea,
uch
an
in
a
nail
or
tooth-rush.
to
powder.
The
powder
of
common
borax
crystals
ay
also
be
employed.
Fluorspar.
It
should
obviously
be
quite
free
irom
galena
or
other
ores
iron
centre.
As
soon
as
the
proposed
slag,
after
a
contents
are
poured
fluxes,
but
is
usually
ore
vitreous,
 om
the
presence
soda
during
fusion
upon
galena,
to
the
under
surface
down-ards,
in
which
case
the
comers
or
be too
U-piece
f
iron
maybe
inserted
with
the
ends
uppermost,
in
which
case
ihe
lower
or
rounded
portion
is
liable
to
be
eaten
away,
and
When iron nails
slanting
the
trouble
of
the
manipulation,
nd
the
yield
than
order
to
decompose
any
the difference is much leae than is sometimes stated. Silica
appears
to
have
more
influence
on
the
yield
was
;
llie fluxes
Argol
ASSAY.
117
passes
_y
subsequent
cnpellation
existing
n
lead
ores,
or
from
other
causes.
We
believe
have
been
tried
in
our
metallnrgical
abo-atory
during
many
months,
The
pToceesee
employed
lead
are
distinct
and
oomplete
 
Hospital
and
upon many
this
subject
ho
expense
and
;
kingdom.
But
this
re-eating
of
the
crystals
rendered
necessary
a
peculiar
was
attended
or
passage
for
stoking
at
perceived
fae
insisted
upon
an
ash-pit
oor
as
well
arm
ia
a
roller,b,
which
crystalliring
ass
of
lead,
a
chain
connected
with
a
crab
is
attached
to
is allowed
to
cool
very
slowly,
care
being
taken
to
liquid
ass
from
time
to
time
any
portion
that
may
congeal
on
permanent
previous
operationsemaining
in
the
different
pots
as
follows
now
two
operations,
aking
Operation
18
owts.
of
original
ead
to
No.
4,
Operatiort
. 90
cwts.
of
original
ead
are
added
to
Na
4,
which
state
Nob.
a,
6
and
7,
Operation
1.
divided into
crjstallizingB.
he
yeUow
figures
indicate
the
original
ead
operated
n
ytbs
of
original
ead,
added
in
15
portions
f
|tb,
or
fths,
 e
by
71
crystalliings
separated
nto
16
times
^ths
or
Yths
of
of sUver
that the
giving
ithardness
are
seized
upon
and
most
intimate
oontaot
with
them,
enei^tic.
that there
of lead
 r
more
slowly
by
Pattinson's
process
cannot
informs
me
Theae
pota
are
1
thick,
and
is
deep.
over
orystallizing-pot
s
a
spout
or
channel
to
carry
crystal-
lizing-pot,
pot
must
be
so
pierced
liquid
pot,
was
one
set
of
two
pots,
but
several
sets
maintained
at
a
an
inclined
paddle(not
shown
ingot-moulds,
d,
having
iron
eyes
placed
in
the
centre,
by
means
melting-pot
ire-plaoe
s
turned
through
;
same
moulds
moulds,
or
process
is,
when
requisite,
eturned
to
the
melting-pot
nd
treated
like
the
original
ead.
Notwithstanding
the
process
seemed
to
promise
considerable
advantages
effective
operation,
was
abandoned.
Machinery
 
the
liquid
portion.
In
a
6-ton
charge,
crystals
f
lead
were
taken
out
suspects
antimony,
and
antimony
After
charge.
Theite
results
slowly
to
cool,
nearly
complete
separation
which
a
patent
was
granted
to
may
I
The
softening
me
that
Ijlb.
it
must
a
rich
indigo-blue
olour,
purpose.
as
far
as
practicable
own
bulk
of
coal,
5
cwts.
next
operation.
an
hour
before
tapping.
lever,
and
having
attached
at
to
the
escape
of
the
gaseous
matter
from
the
wood,
1 15 0
3
exposedduring
solidification
to
1^%
of
zino
must
be
may
he
kept
so
much
virtually
or
scum
lead
instance
must
be
properly
adjusted
o
the
total
quantity
desilverization contained
ore
containing
lead.
Eetorts
were
high
at
ft)
The
to
separate
from
lead]
secondly,
f
extracting
Jung,
at
Commem,
and
at
litendlj
muuli
Q.
anccessive additions
desilverization of the
portion
preparedby
the
action
of
hydrochloric
cid
upon
lead-fame,
and
is,
consequently,
ot
very
pure,
containing
only62%
of
by
the
lead
presenting
the
ap-earances
characteristic
of
purity,
which
are
well
known
to
every
skimmed
clean,
after
throwing
antimony
fin
which
case
the
treatment
with
that,
while
I
publish
the
followinK
lead,
reduced
pv
eml.
antimony,
or
by
its
oiuda-
tion
by
existing
in
by
lUJg
to
chloride of
more
advantageous
use
of
slagged
potent
urniBlies
i
not
on
i
applied
in
pnictice
essential
point
re-ined
in
an
Englishcupellation-fumaoe.
the view of further
ozs.,
computed
to
remain
in
the
pot;
3.
Passing
water
product;
but
liquated
lead
after
tapping
held
3
quints
of
Bilvor
per
centner,
and,
after
skimming
TaBIS
eiceeding
23i.
per
ton.
crust
of
argentiferouB
ino
containing
ome
lead,
raporhoated
team
is
passed
slightly
ttacked.
llie
hydrogen,
hich
alloy,
ith
a
view
to
are
to
be
sepa-ated
frooL
the
molten
argentiferous
ead
f.
Cdvct
or
liDud
roninmnlaiilr
i.
Spmt
(or
Upplng
off
*
formed,
of
which
the
quantity
upon
the
surface
left,
hich
are
particleseposited
constitute
74%
to
76%,
10%
refining.
The
use
was,
how-ver,
went
on
volatilization
was
very
large,
PRUSSU. 178
are
performed
in
the
same
pot,
one
of
a
series
formerly
oxides,
which
are
found
to
are
washed
upon
an
inclined
frame
as
at
Havre
poorer
off
everse
condi-ions
prevaiL
other
Harz
ores.
The
following
to
note
how
metallurgical
rocesses
may
be
approved
one
year
and
practice
The
separation
f
copper
contain-ng
copper
a
pasty
or
racter
amount
oza.
of
copper
per
ton,
the
copper
was
reduced
on
the
average
to
1
oz.
21
only
a
including
charging
and
tapping
out.
From
...
 
...
the fire
capsule
capsule,
presenting,
t
maybe,
a
somewhat
scoriaceous
aspect;
containing
xide
of
tin
or
other
oxide,
tion.
What
completelique c-
However,
space
between
the
fire-bridge
all,
a,
z,
fig.
6,
represents
a
steam-jet
n
a
fiue
leading
o
a
oondensing-chamber,hrough
cnpellatiou-fumaces
ust
pass
trausverse
bars
j
towards
a
point
exactly
midway
per-eived
cavity
by
dotted
lines,
and
must
detached.
steam
through
a
channel
previously
cut
teat,
fig.
2.
on
Llanelly
Works
impurities.
From
2
to
wood-ashee,
mixed
with
a
moveable,
cnpella-
tioiu
may
as
may
be
neoeesary
process
copied
a
layer
up
above,
bo
aa
(o
keep
in
hea^
ami,
lead Dudenieath
t.
Air-furaaue.
clay
a
cupel-
lation
16%
of
clay,together
with
a
as
much
lithaige
s
will
eventually
prevent
the
centre
centre
and
7
at
the
circumference,
and
immediately
underneath
can
more
readily
escape
along
with
the
litharge,
hich
may
consequently
be
richer
finished,
shallow
circular
by
cupellation
or
the last
undergoes
no
prelimi-ary
desiccation
molten lead there collects
sanae
kind
as
that
at
first
put
into
tho
furnace,
this
lead
giving
rise
to
the
formation
of
\ This
appearance
or
brightening
on
the
cake
of
fine
silver,
aused
by
the
edges
are
rounded.
The
whole
mass
of
the
specimen
is
composed
of
an
aggregation
of
distinctly
isible
crystals,
o
toward
the
aide
of
the
fire-place
novel
with
respect
to
most
correct
to
vary
accordingly.
Some
specimens
in
my
collection
are
compact,
dense,
dark
grey,
granular-cry
talli
they
cannot
be
distinguished
om
I.,
weight,
weight
Lead
(by
difference)
2'82S
Smelting
TVorkB,
Goslar.
By
bisiuuth becomes in
or
test
weight
of
water,
and
pre-ipitated
from
cswntially
the
same
as
that
of
which
an
account
any
explanation.
fire-place,
gas
is
a
high
stack.
on
account
blast is
made
ready
good
words,
EingangtAuigaag,
and
Abgang,
which
mean
respectively
he
weight
of
lead
and
silver
cupelled,
he
weight
exceedinglysimple
to
be
refined,
much
more
were
the
refining
er-ormed
in
a
smaller
furnace.
Accordingly,
second
or
after-cupella-
first ooated
A hollow is
over
with
a
mixture
of
clay
and
water,
may
be
test
In the
hearth,
is
a
blast-pipe
a
pressure
equal
to
that the silver is melted down and is in the
usual
motion
in
somewhat
less
the silver,
test.
they sprinkle
a
rvtty
in
every
loUA,
or
method.
one
of
Agricola'suaint
woodcata.
According
to
o]H'ratiun
load
was
extracted
and
atmo-pheric
air,
exactly
n
the
same
principle
.e
and
sul-hate
aahes,
and
I
Natural
UiBloij,'
and
Mi.
Albert
Way's
or
Auld
Gang
cuffinH,
at
York,
as
well
as
tribute
to
the
imperial
treasury
Yonlgreave
(Aldgroove),
n
Derbyshire,
 
Jaw forbade
been
discovered
logical
iiiiv.
Cup.
Peak,
writes
the
Doctor,
to
melt,
they
 
anient Boles
aud
;
General.
Bj
zu
dergleichen
n
Engelland
zu
BriBtoU,
worin
Kupfer-Ertee
Uhymicus,
Farey
states
that
appliedpit-coal
n
Cornwall
to
the
smelting
is
com-ined
with
operated
upon
is
pure
Bnlphide
of
lead,
in
a
comparfttively
ine
state
of
diTision,
perfect
two
volatilized,
and
which
by
means
of
proper
condensing
rrangements
may
of
lead
sul-hide
purer
the
galena,
the
more
cheaply
may
it
processes
of
smelting
galeniferous
res.
it
same
farnaoo.
ore
occur
jwrt
out
in
pasty
lumps.
Deteription
f
the
furnace.
An
arched
vault,
called
the
air-Tanlt,
extends
longitudinally
(figs.
il,fj2,
3,
64,
56).
On
the
crown
on
castings
series,
ends,
Hgbt
and
left,
being
different
At the front of the furnace below the mi )dle
door-frame is
tap-
hole
(figs.
1,
56).
Immediately
under
the
tap-hololate
and
lacing
the
tap-hole
s
a
circular
pot
of
cast-iron,
above with
Th. Btfrbrkl.
operation.
At
the
fine-end
on
68).
On
each
parts
desired
shape,
I
Hit tiM v\A ohlch ba dravi
oui
Lhc
lUg.
and
W10I11-.
g.'sktniB r.
aral'
; Kidc.
if
dwR
and
up-hole
I
op,
fiimacea
as
those
used
in
Flintshire
or
underneath,
spread
pretty
evenly
over
over
the
surface
of
shape
as
upon
the
fire,
an
hour.
smelting
he
slags,
This,however,
is
but
a
small
item,
was
side-doors,
as
well
as
the
fire-door,
ere
open.
was
observed
to
trickle
6
h.
35
m.
waa
detached
by
the
paddle,
on
more
adherent
part
uf
the
charge
and
the
like
purpose.
The
matter
so
detached,
as
well
as
that
run
on an
fnrnace
were
thrown
on
tte
top
Bulphide
=
error
the
charge,
ay
it
comes
in
contact,
whereby
it
may
be
be chemical
with the
lime is chemicaL
protoxide
of
lead
or
alumina,
combination. The
silic teof lead
silicain
not
sennbly
reduced
in
tbia
proceea,
as
migbt
have
been
anticipated.
residual
salphide
reduction of that
;
5 ;
slag
were
produced,
ne
which
was
run
out,
3
to
4
hours,
precautions
s
to
temperature
water.
The
time
required
or
smelting
he
charge
was
Flintshire
furnace
tap-hole,
con-iderably
in
relative
dimensions,
form,
are
presented
n
the
following
'able,
bridged
occurs
in
smelting
the
slagbeing5%.
The
consumption
From
the
preceding
FUHNACE.
working
The
ore
is
galena
at
elevation,
n
plan,
length
there
is
very
em-loyed
ancii^nt
this
door,bowever,
to
revolve,
as
was
kept
fullof
burning
brushwood
during
was
reported
Barface
is
as
much
intensity,
they
do
not
volatilizethe
metal
which
is
constantlyccumulating
n
the
cavity
over
by
the
are
always
very
careful
to
keep
these
parte
of
the furnace clean and free of obstruction. In all other kinds
of
reverberatory
amoces,
necessary
articles,
lie
total
outlay
would
not
exceed
IbOO
francs
(601.).
on
the
subject
as
to
products
are
three
doors,
air,
and
on
the
right
is
carried
on
iron
bars,
wliich
are
laid
lead-slag
and
reducing
gents,
LKAD-SMELTINO AT BLEXBEBQ.
as
accompanied
by
zinc-blende,
 
lengthof
the
fire-place
i8
2'6j .
generally
Bleibcrg
the
working
bottom
is
6''
thick,
been
prepared
the
resulting
vola-ilization.
Quartz
causes
the
slagging
of
a
large
quantity
of
the
oxide
of
degree
of
fusibility
to
supposition,
refer
to
lead,
would
suffice
to
Bleiberg
process
strictly
o
called.
But,
according
to
Karsten,*
the
a
reverberatory
urnace
nearly
white,
and
red
vapour
ceases
to
a
than
that,
one
cannot
filter
with tho least
the lead
ozs,,
or
25%
lead,
none
country
are
allowed
to
remain
unproductive.
Should
its
volume
to
an
English
lead-smelter,
r.
H
repeated
the
roasting
for
4
hours
more,
about
6
arrobas
had settled.
chimney,
widened
the
openings,
nd
lowered
the
hearth,
was
seldom
freefrom
lead-oolic,
nd
at
last
died
of
 
weight
of
oxygen
in
a
^tven
volume
of
air
notably
panicles
f
ox3'gen
may,
by
reason
of
by
the
promptness
of
their
action;
a
largequantity
f
lead,
the
resulting
xidized
pro-uct
underlyingiul[]hide,hereby
metallic lead
moved
by
a
water-wheel
now
confined
to
the
north
of
England
States,
my
friend.
edge
is
a
groove,
as
 g.
any
adherent
slag,
m.
The
to
high.
Upper
quantity
on
in,
lead
begins
o
flow
scraper
through
on
the
work-stone,
setting
p
the
contents
so
throughout.
Load
now
flows
freely.
Ore
  eww.
nn
lbs.
a
fevv
dnly
tempered
with
water,
b.
Bearer,
a
square
prism
6
on
:
poBteriorly,
The
blast,
according
o
Mt,
Pattinson,
is
always
adopted
by
some
intelligent
melters
(such
as
blow
air
through,
general
the
fore-stone
and
pipe-stoneby
10
or
12
lbs.
at
a
examined
upon
the
work-stone,
and
any
lumps
that
may
be
avoided
particles
f
ore,
projected
York,
wood
hearth-bottom
oorre^wnding
ore
contained
The
process
of
lead-smelting
s
conducted
by
easU;
ore
is
imbedded.
Hie
author
fire-ietting,
reached
the
foremost
man,
they
move
upwards
and
again
seat
themselves
in
is
a
tap-hole,
nd
on
the
opposite
prooeas,
tlie
galena
would
quickly
For the
elements,
as
with
antimony
silver,
r
with
mercury
as
native
consists,
uch
as
disseminated
ore
decreases
in
quantity
in
passing
Tein-stuff;
an
average
yield
of
0-0168%
crushing
is
performedby
ordinary
stamps
working
on
a
againit
the
wortdDg
face.
In
with
sulphur,
silver and
,, ,
lead
produced
for
if
the
regulns,
and
therefore
haa
to
he
subaeqnently
extracted,
thus
involving
Dnnecesaary
operations.
About
0-75%
to
generally
onsidered
a
proper
proportion,
raw-smelting
rocesses.
The
clay.
The
charge
is
50
or
a
hook,
a
black
colour,
emelting.
The
bottom
is
broken
up
and
treated
a
few
houi-s
the
refining
s
complete,
lumps),
early
stages
of
cupellation,
kept
onlyjust
warm
enough
to
prevent
solidification,
y
which
means
certain
metallic
impuritiespresent
accumulate
on
may
be
yield
carboniferous
syiftem.
According
consists almost
proportion
pro-ortion
of
coke
is
mainly
determined
by
hours about
3 ctrs.
conjectured,
as
chemically
The
re-smclting
I.,II.,HI.,
silver,
sulphides
f
iron,
copper,
lead
products
go
back
to
the
blast-furnace,
hilo
the
speise
is
 
oilvcr. These
type
speise
to
of the
firstand second
E,
together
oi
caavg
throagh
the
two
tmeliing-fvimaee
figs.
05
well
kept
up;
and
after
the
lapse
of
2^
hours,
the
charge
with
proper
firing
door is
akimming-door,
n tke
passing
hrough
remark that chloriticslate
blaat-Ainiftce,
the
proportion
cined
ore
is that under the
[Minted
out
do
occur
in
practice,
short of theoretical
resultingroducts,namely,protoxide
nd
sulphate
f
lead;
and
in
order
to
illustratethat
principle
same
composition
s
the
slag
added,
2'982
2'579
regulus
sboald,
as
far
as
possible,
at
Freiberg.
The
regulus
to
renins by
superheated
team.
There
are
two
rows
of
such
tubs
arranged
ne
higher
manipulation.
tub
opened,
to
dissolve
out
completely.
CryglaVaalitm.*
crystals.
The
crystals
f
;
to the
experiments
state
of
peroxide
may
be
quickly
nd
oomplbtely
;
description
he
works
at
Pontgiband,
Aniedi-eltuiBl.IriKiinii'Ur.Pioft'ascnrd'Ex
pluitutiiiii
as
two
furnaces
than
(B)
is
placed
3
at
furnace
A
underneath,where,
being
exposed
to
a
much
higher
temperature,
OxideofUad
Silks,
quart*,
mi
felspar
the
expulsion
f
a
certain
quantity
of
sulphuric
cid
 
course
to
the
so
III. The reduction of the silicate of lead in the
agglomerated
product
in
a
blast-furnace
by
the
joint
a
flux,
or
smeltingharge
becomes
wholly
oxidized,
chiefly
t
the
expense
are
in
the
ao
intimately
much,
rangii^
compared
em-loyment,
the
is
quartz
and
iron-pyrites.
he
process
of
smelting
gases
is
go
regulated
by
means
of
a
atmosphere.
20 i
 
iron-
reduction
process.
Hence
bonic oxide
by
a
in
question,
is
necessarily
producb^
so,
by
the rednciion of oxide of lead. The oxidation of metallic
by
contact
more
and
we
know
The
so-called
Bleiberg
of
high
ground
formed
by
the
Devonian rocks breaks
thickness and
it is
state
working
order
holds
6
such
charges
at
a
time.
wall.
There
are
metal,
the
temperature
4%
to
5%
of
tap-cinder
nd
from
3%
to
4%
quantity,
re
melted
in
more or
a con-umption
a
process
operated
pon
;
6|
ctrs.
of
gianulated
ast-iron
and
20
otrs.
of
iron
finery-alagBi.e.hiefly
consisting
high
furnaces.
Moreorer,
when
coke
was
used,
the
regnlus
ore
may
account
purpose.
century
ores,
which
smeltingprolonged.
One
twyer
was
high
to
24.
p.
aocesaory
products,
mounted
to
1
2%
out
even
by
a
specified,
ot
-.... ^.^ .
In the
working
up
all
same.
In
1829
forther
experiments
were
to
a
Geimatt
cupellation-fumace,i:cept
Lange
states
(8%).
The
comparative
trials,
which
are
The cost
8d.
The
jield
of
tbe
latter,
a.
Id.
For
a
given
weight
of
(a
tile
High
Furnace
produces
3-74%
more
high
furnace
TAHNOWITZ.
equal
weight
faraace,
and
a
partialloasting'
f
the
ore
if
thereb;
oSbcted,
SBfastitattBg
oasted
pit-cosl,
prevented.
ut
{
general
than
ore
smelted in the
have
been
previously
pecified,epeated
attempts
Smelting
seven
analyses
made
by
;
qaantii,''
of
regnluB
and
only
in
a
slightdegree
hand,
the
addition
;
;
regiilus.
o
suggests
that
dnrini;
other
in
specific
ravity,
et
some
time
quantity
so
previously
been
advanced
for
doubting
the
a
blast-furnace
as
ia
galena
the
shaft,
or
and it
shaft.
HARZ.
compotted
'wholly
r
in
part
more
readily,
ur
reasons
atwignctl
;
fuel
and
wages
:
this
work
^Ve
are
indebted
piw*
of
regulua,artly
crystals
f
sulphide
of
lead,
;
by smelting
at
the
surface
having
been
changed
into
proto-eesquioxide
it
was
The
foregoing
ate
uaed
more
quickly
corroded
ton
analyses
of
such
slags
tabulated
by
perfwlh
clean
on
the
surface,
cast
The
regulus
s
thrown
away.
Excellent
pictorial
epresentations
f
the
process
of
washing
is
bowls
by
women,
and
of
smelting
and
castilig
ead,
are
able
Things
of
iron
finery-slags,
s
an
agent
Recently,
owever,
a
similar
c.
Fore-hearth.
passes
The
dage
analjaedby
Btreng
^
clay-^te,
at
the
Altenau
Silver-smeltiiig
cvts,
CoMWiTumma
or
Fra-iROK
fboh
(Topfeb-Slaos.
Bnlphw
the
charcoal-finery
ontained
2-95%
copper
and
0-011%
of
sulphur.
Lead-el
agB
The
analytical
esults
obtained
by
Streug,
furnace.
COKFOBIIIOK
or
TBI
BlOULt)
copper
am
 Ugi.
75
otn.
of
BdUieg-tlagi.
blast-pipes
t
the
mnzzl
was
1^ .
b. I'roduction of lessfume.
copper-slags;
hicJi
metals
are
furnace
was
slightl.v
furnace.
II.
Lead
from
the
c
SeMiegofen.
oth
samples
of
lead
were
Harz
slags.
II.
Regulos
 om
the
common
Schliegofen,
It is remarked that the fact of the from the Bachette
furnace
containing
rom
8%
to
10%
furnace,
giveshope
;
frcnn
fr^pnents
be
analysed
Supposing,
then,
sulphide
furnace,
?
lead; and,
of
silver
in
tho
fume-condensing
hambers,
un
account
of
which
the
use
sulphurous
cid,
oiygi'n,
Anglesey,
a
mineral
called
of
lead
and
zinc
so
intimately
ixed
as
to
constitute
a
prac-ically
substance,
and
to
Spence
of
Manchester,
and
successful
pro-ess
of
manufacturing
ammoniacal
alum,
has
recently
tt
icked
this
stubborn
stuff
ore
into
a
paste,
which
is
stete.
Ahalttioal
process,
should
only
occasionally
e
separated
nd
appear
designarted,
iffers
notably
in
oom-
position
following
s
the
compo-
sitioa
of
the
slag
CojfPosinoN
or
Slao.
I.
sulphide
only
W,
of
copper
as
disulphide.
The
source
practicable,
nd
tLi'
can
only
process,
quantity.
Henoe
Spaniards.
DeKriplion
f
the
elag-hearth.
and cast-iron
encased in
*
'
has
by
to
slope
betw(-
u
on.
quicklyignited.
Ahout
1
cwt.
of
coke
is
now
added,
burning
up
the
men
sharpen
their
stubbing
tools
to
from the
interior
preparatory
for
stubbing
at
tk
ensuing
shift.
The
use
are so
furnace works better and the r salt ie
m v
1
part
of
slag-lead.*
a
course^.
The
original
urnaces
in
Spain
rentury,
stiilos
iron,
encircled
with
strong
hoops
men are em-loyed,
through
kettle and
Twycrs,
....
10
grains
per
ton
(I
gramme
 
braced
externally
with
strong
bare
of
square
wrought-iron
placedvertically
nd
en-ircled
with
or
uj)
to
tlie
top
and
some
hundred-eights
has become
ptsnta
MicA
08
a
little
bo-jk
any
adherent
vlag
or
other
matter
tending
to
checking
the
exhausting
Towards
manner
of
admitting
dilfictiltiin
{embmroM),
hich
occnr
during
some
is
grw;--
ores
is
precisely
he
reverse
of
an
exci-fc
in
u-
In
1859
they
were
still
in
use
at
Rome
worke
4
labonrera
at
S
20
1
OTerlooker.
8
Breakage
and
carriage
to
1
600
to
be
composed
4
follows
by
most
part.
a
sufficiency
f
strong
earthy
bases,
it
is
not
necessary
to
make
any
observations,
as
they
are
present
in
too
small
quantities
to
the
treatment
of
the
regulus,
confess
I
do
not
ITRMAOES.
Boniewhat
dogmatically
hat
eo-calle^l
nature
with the
CAEBONATB.
433
pburotta
cid
(See
p.
30,
Bulphnr
heated
But
opinions,
restingmerely
on
personalauthority,
owever
re-pectable
and
even
weighty
it
may
be,
will
not
produce
conviction
blast-furnace
than
at
present,
when
neartrt'l
carbonated
ores,
lead-fome
from
lead-smeltin;
ftrnacew
or
u
expcmed
to
high
temperature,
ht
are
in
operation
uch
open-ngs,
practicable
ave
a
gentle
inclination
upwards
3
furlongs
1
yards.
The
transverse
area
out
quantity
as
depotited.
n
the vertical
is
compelled
to
pass
under
a
partition
hrough
a
near
Holywell,
sulphurous
acid
upon
the
materials
used
the
water,
which
runs
out
of
thl'
sfstem
was
shown
in
of
poiswiit-.
the
neighbourhood,
vegetation
was
destroyed,
nd
no
ohinmey,
and
game
on
all
si(l -
escape
from
tlio
furnaces,
and
Bnhseqneutlyxposing
a
pit
underneath.
arc
In
the
middle
of
course.
The
space
perforated
propelled
into
the
narrower
chamber
(say
at
freely
through
numerous
arched
openings
with
a
pit
or
troughextending
of
the
trough.
By
this
arrangement
the
deposited
fiime
is
expected
to
to
remove
lead-fame
from
air
containing
into the
the
draught
found
sufficient.
water
kept
open
certain
passages
through
which
It
moved
slowlyalong
it.
to Sftturste
the smoke
is
easy
enoogii
maia
flue,
was
aboni
90
yards.
light-grey
irith
t
pinkish
tinge.
fumes of
condeuBing-chamber.
Fume
white,
floccnlent,
and
tolerablylight.
100
widely
from
each
100
kil.
gram,
of
silver,
lOOkil.
of
leod,therefore,
ontained
*
may
occnr
crystals
f
sulphide
f
lead
have
been
volatility
 
of
sulphuric
acid,
sulphurous
acid,
and
oxygen
(see
p.
41)
hy
tho
long'
xin
tinned
deposited
i::
smelting
7H,008
cwts.
of
ore
same ore
rootled. The
the
raw
ore,
But
that
problem,
it
will
be
remembered,
has
been
previously
to
the
depth
withdrawal
may
correspond
ydtl
the
tap-holo
dross
fire-bridgt.
designates
s
an
improvement
process
of
desilverization,
exposed
to
which thi
not
pnitluH-
them,
and
one
cargo
was
transhipped
to
Kewcaetle-oa-Tyne.
Tiiii
lead
could
not
faa l
or
litbarge
containing
melted
and
had
those
tea
is
imported
was
lead
exhibited
colours;
from
which
it
was
concluded
SomNnG
or
may
be
dissolved
oat
cupels
or
'i he
earths,
sulphate
f
iron,
and
a
original
metal,
and
sejw*'
dnrinj;
slow
cooling,
ising
to
the
top
^
in
copper
would
Ho
been
left,
perhaps
along
with
partially
xidized
proilucts
at
a
R'-
has
;
on
the
Saturday
it
was
tr.-
an
article
on
the
reflning
by
been
retained
in
century
Jars
are
in
coarse
particles,
'hen
proportion
required
a
shift,
which
lasta,
say,
from
operation
he
litharge-slag
ay
quaUty
before
long.
In
an
honr
or
two,
according
o
the
heat,
to
the
description
skimmings
or
pot-dross
way
by
inserting
only
no
flux
is
required;
cnpellation-fumace,
0%
old
men
essentially
change
altitude,
interesting
nd
a
knowledge
of
which
may
be
conjunc-ion
with
some
lead-elags.
Beduction
in
the
German
cupelleition-fwtUKe.
smelting-
houae.
Any
metallic
ordinary
Chinese
bricks;
there
The
fuel
was
they
 rere
bnnJiL:
smeltinggalena
of
such
a
qualitv
longexperience
necessarilymply
less
pecuniary
eturn,
and
this
upon
smelting
is
not
also
simTiltaaunusly
ndergo
Bi^-
fiimaces
are
estcusively
way very
is
evolved,
copper
ia
aepftnted
ou''
Any
of
this
1'
which
might
escape
ould be
in
vapour
would
carry
off
lead,
while
in
the
blende
would
be
oxidized
and
the
resulting
of
iron,
will
be
decomposed
wi:'n
calcination,
but
part
will
remain
in
any
ar euic,
formed,
presence
during
the
proctsv
and
lead-regulus
s
generated,
Experience
widely
difierent
question.
Carbonate
of
during
calcination,
and
bome
sulphate
of
lime
is
is
added
in
considerable
quantity,
ts
action,
According
to
Kerl,
1
2%,
for all
are
evolved,
sulphate
of
baryta
is
reduced
to
sulphide
slag
meaning,
as
in
dressed
ore
in
sufficient
qtiautity
o
produce
any
decidedlyinjurious
ffect
on
the
operation
f
smelting
to
the
reverberatory
is
essentially
may
pass
into
w-
slags
in
zinc shonl'i
-8
SttELTlNQ.
COHHEBCIAL
DETAILS.'
FOBOBAO
or
0U8.
In
Flintshire
1870.
The
RODCora
Smelting
CtMnpan;,
oncom.
Gobmwill:
roofing
and
other
iratp**^
was
obtained
table,
and
romi'
off
at
was
of
a
crucible
containing
plates
a
great
term
of
years,
(It)
et
lemaineth
as
firm
and
right
as
Mill'd-Lead,
for
the
retences
Cast-Lead,
and
the
sleightness
nd
the
charge
of
the
other,
this little
many
Persons
being
concem'd
in
Point
of
Interest,
right
or
wrong,
they
will
decry
that
which
is
against
their
profit,
nd
procure
as
many
others
as
they
oaat-iron,
o
w
to
form
iaxge
aqnare
or
supported
a
certain
degree,
case
oold,
this
condiii
does
not
exist,
only
Id
to
be
running
timber,
hecanw
sheeta
effluvia
Fbotmtioi
op
Cofpcr
in
the
niarket
as
purest
with
clay
and
chalk,
which
was
TituB.*
Oeneralprindpleg.
The
process
of
manOfEicturing
ed-lead
comprises
two
distinct
stages,
protoxide,
and
the
will
be
easily
understood
a
chain
is
awspeai-'-
having
a
hook
flat,
nd
alopes
own
4
inches
, 1 .1 1 1
down and the lead
oxidized
drains
out
into
a
mould
placed
under
the
mouth
of
the
oven,
ntages
pro-
QJ
D
cess,
namely,
the
g^^ _
production
of
prot-xide
of lead from the metal and the conversion of that oxide into
red-lead.
The
preparation
moving
the
charge
fr-jir
time
to
time
thus
ground
falls
thron;
a
at
Ballycori-
by
Mr.
Adkir.
for the manufacture of red-lead is that from the Snailbeach
misT.
Shropshire
and
no
greater
looal
repute
bv
flint-glass
coppei
Formerly
517
clear
as
produced
is
heaped
all
around
by
means
dose.
My
friend
asnut^
me
that
Baker
asserts
Pil-
phurettedslag-load
in
the
originallead,
thus
Bhowing
me
with
the
followingparticulars.
Samples
were
taken
(A)
Of
the
charge
separated
description,
t
appears
that
dressing
and
colonring
ere
performed
afp i'
to
rv
ncss
0-10
500
grains
building
devoted
to
those
operatioux
 ud
not
with
of
cartridges
imported
bv
iL-
Frunuh
History,
at
to
CaUidium
tangvimeawt,
In
1839,
while
at
Matlock
Bath,
in
Derbyshire,
received  
quantity
amongat
tlie
intat^'
pi
Pi
eight
days.
But
lie
in the
first instance.
of
Wrist-drop
ccur
without
having
been
preceded
y
colic.
According
o
my
friend,
Dr.
Rees,
senior
physician
of
Guy'sHospital,
nrine.
Mj
'ricnd
Dr.
Sibson,
theiri^^
especially
olject
ay
be.
soil
it
well-regulated
the
 m-''
of
inquisitorial
tate
inspection,
ith
a
charge
upon
the
l '
inspectors.
At
present
'we
have
ei ^
such
charges,
to
hos-
tal
practioB,
hat
many
artizans
seem
to
or
drawn,
leaving
the
bulk
of
the
fiime
been often
tried and
It
moved
slowly
along
it.
easy
enough
with
artificial
rain,
wet
cokes,bricks,
 o.,
to
condense
the
steam
to
mist
451
flsihing
f
them
out
with
escaping
reverberatory
furnaces,
Flintshire
and
Flowing,
and
Spanish
slag-hearth
as
conducted
tiiroughlong
flues
or
culverts,
stack. The three
was
about
90
yard .
greater
richness
are
especiallyntereetiug
ehewing
how
the
first
condeaeiug-cbamber.
ume
 white,
floccnlent,
nd
tolerably
light.
kil.
 as
the
temperature
ia
tolerablyigh
condensing-chamber.
grains.
It
gold
Volatilize
at
temperatures
existing
duced in the
is
compelled
to
pass
through
water.
The
water
which
escapes
from
Stagg's
condenser
con-ensed
in
the
smelting
deposited
n
smelting
7H,008
cwts.
of
ore
in
problem,
is
either
largely
r
wholly
present
con-enient
to
agglutinate
eome ores are so
Bmelting-nimace
c xa-'
object
he
separatioii
of
foreign
atters
upon
the
presence
to
the
depth
of
abont
J
to
be
more
necessary
[cast-iron]
plates,
r
of
lai^
were
erected,
one
for
common
lead
'
described and
copper
becomes
concentrated,
which is formed. The
described
a
cylinder
pot
is
a
round
hole,
to
which
at
a
convenient
height
of the
poled
previously
to
pattinsonization
and
the
reason
alleged
was
the
production
f
a
good
soft
lead,
at
so
reasonable
a
cost
as
to
the
first
cargoes
not
purchase
them,
and
one
cargo
was
tranBhipped
o
Kewcastle-on-Tyne.
This
lead
could
not
be
softened
in
[This
is
a
surprising
tatement,
seeing
that
at
some
British
lead-smelting
works
become soft. In the
cupellation
Abtng
rises
melted
of his
was
as
is
usual,
was
then
examined,
Calcined Chineee tea-lead
redoced
But
a
little
tin
added
to
a
mixture
5%
of
antimony
a
mixture
eompoHcd
of
equal
parts
may
cupels
or
test-bottoms.
The
cupels
are
reduced
to
powder
and
mixed
have been
dissolved. The
li^d,
matter
eitlicr
in
a
reverberatory
r
blaet-f
umace
type-metal,
r
in
some
cases
previous
pera-ions.*
The
same
authority
recommended,
reverberatory
fiimace,
as
is
usual,
about
2^%
along
that soda-ash caused
VL,
by
subjecting
hem
to
the
softening
process,
as
Iron
copper
separation
f
exceedingly
probable,
;
when
certain
ores
of
tin
are
smelted,
at
furnace,
a
circular
cast-iron
pot,
pot
into
ingot-moulds
f
the
the furnace all
in
the
a
layer
are
in
ooarse
particles.
hen
with
a
laj'er
proportion
required
for
its
a
shift,
which
lasts,
say,
from
operation
he
mass
on
the
bed
of
at
should be selected for reduction which contains least ash. The
lithai^e-slag
pot
particlespreadthrough
much
cinder,
out.
The
tap-hole
is
opened
to
the
lowest
point,
very
particle
metal.
If
arsenic,
antimony,
tin,
copper,
or
respeotiTely
e
kept
apart
sm ltiiig-honse
loor. The
475
completely
olten
ou
must
matter.
In
are
opened
centners
particles,
in
precisely
he
same
form
as
given
in
the
paper
It
ia
a
essentially
the
brasque
bed
to
the
height
of
twyer,
the
state
working
well
conjunc-ion
with
some
lead-slags.
Bedvciion
fragments
of
roll-sulphur
ntil
enough
variety
of
methods
smelting,
probably
the
most
iufluentiai
are
the
nature
and
proportion
no
ore
which,
supposing
it
to
a
given
with
sesquioxide
of
iron,
sulphurous
acid
is
evolved,
with
corresponding,
et
only
partial,
eduction
in
the
slag
in
that
unchanged
dieulphide
f
copper.
Kegulns
of
iron,
copper,
is
evolved,
opper
is
separated
both
in
;
expelled
nd
escape
npwarda,
before
descending
to
that
zone;
where
the
tempera-
tuie
of
the
furnace.'
that
argentiferous
galenas,
ure
galenaa,
or
blendic
galenas;
to this
of
antimony
or
autimonious
add,
or
when
sulphide
f
antimony
iron,
during
calcination,
ut
part
will
remain
in
any
arsenic,
of lead and
presence
Experience
required
to
mainly
far
melting'
down
mass.'
In
the
Blaat-fnmace,
to
a
greater
or
less
extent,
and
the
resulting
readily
fusible
compounds
the
slags
and
 
volatilization,
nd
the
larger
he
consumption
concerning
by
this
Heverbcratory
urnace
oxidizing,
xidized
ores
THE
ORE.
491.
Tmconsciously,y
treatment
may
be
fixed
a
priori,
ithout
neglecting,
s
far
as
possible,
ny
to
may
pass
into
the
slags
in
the form of oxide. Reduction of the oxide of zinc should bo
preventedby quick
roasting
in the
itcalUFd In the
roofing
nd
other
purposes
was
obtained
long,
not
unlike
a
billiard
-table,
having
a
table,
a manner
a
was a
conveniently
was a
table,
and
rounded
ofl
at
was
was
usiially
prodnoed
 
Gentlemen,
eto.
(p.68).
In
spite
this little
(beingproposed
as
better
and
cheaper,
o
lay
aside
something
Interest,
ight
or
wrong,
they
will
decry
that
served
thia
tcmporaty
purpose,
they
are
be
juat
hot
enough
too
running
on
to
the
English
articles
quality
H NnrAOTtiBB
succesaive
tappings.
Lkad
in
purest
competition,
owever,
seems
at
length
to
be
uprootingprejudices
hich,
as
dispelled
n
recent
years,
or ceruse
into
protoxide,
and
in the
clear is
or
dressing
tage.
a
flat,
nd
slopes
own
4
inches
opportunity
the median line
as
it
iHsueB
from
the
etonee
in
the
is
finely-divided
rotoxide.
Theproeee*
t
eondueled
by
tie
fig.
55,
red-lead thus
The increase in the
at
Ballycoms
by
Mr,
Adkins
mine,
Shropshire
and
no
greater
local
repute
l^
the
centre
of
the
oven,
of
which
pool
of
produced
is
heaped
asserted
that
several
tons
aatimcMDy
seemed
to
bo
exhausted,
and
droasing
ook
place
slowly
as
at
first.
The
repetition
f
containingsulphur
may
antimony.
Saker
asserts
that
.
me
with
the
fallowingparticulars.
Sampleswere
taken
(A)
 om Flattner
Essay
on
what
is
Bej)arated
from the
roof of
into
larger
masses
;
however,
a
small
quantity
of
coloured
light
comes
through,
as
if
a
few
crystals
ere
mechanically
ixed
with
a
largoquantity
of
some
certain
mandiblea,
reducing
t
to
powder,
but
eating
one
cartridges
imported
by
the
French
History,
at
Grenoble,
^milar
perforations
in
to
Caliidiuat
of
the
lining.
The
perforations
re
counter-inking
appears,
or
that
which
had
not
;
in
both
with
water
and
not
compounds
of
lead,
Buch
as
published
are
 
never
had
quantity
is te med l.ead-Colic
There
is
great
instance. In-ividuals,
by experiment
upon
by
its
irritability,
nd,
immediately
afterwards,
patient
following
My
friend
Dr.
Sibson,
only
alternatives
being
to
earn
their
daily
bread
by
to
starve,
or
to
subsist
on
pabliccharity.
well
to
offspring,
especially
this
object
ay
be,
the
annoyance
of
inquisitorial
tate
inspection,
ith
a
charge
been
duly
influenced
poison
into
the
system.
I
Mines,
and
as
by invefltigating
and with
are as
follow. In
vicinity
Ihiring
a
heavy
winter
flood,
the
stream
above
drink, we
oxide,
soft
Beequioxiile
silicateof
lead.
2PbO,BiO'
77-21
Lead
left
Leodloet
by
present
in
the
a
Ijud-fifk.
(See
p.
67.)
A
lead-pipe
as
recently
by
the
prcBsure
resulting
way
to
the
eiterior
0-G28 4
**
 odiam,
66.
of lead
charroal,
and
cbirrml,
Xi;
with
bj,
533.
428,
434,
495,
499.
EUffurdifajn,
98.
Scolberg,
Ptambate
o^
hotr
made,
25.
Spanidi
inKlUng'Worki,
2be,
425.
natc-leid,
501.
Plattner
on
roattlng
galena,
46.
on
roaating
niTphidea
lead
in,
3.
Royal
tinson'a
process,
137.
lir tb*
nurlk
HAOMETICAL
ISU. 41.
[CbnmoiMUa]).
ISIT.
DaolptloaafAttulmallL
tt.
isn.
BdndttoaTaMM^
3 .
18H.
DMBtpdoBomwEndthTnbb
St
HAOKETICAL AND METEOBOLOaiCAI.
M.A.
I
DiBTunua.
1TT1.
BABINE'S
PEMDULCH
Norfolk
  ' ,
W,
T.
BnllDck.
Pint
Thne
Cantul^
Canwvoadne*.
NoUl
of
ThoDglit.
With
Sl(,
/naoue:
Popular
Edition.
PUIm.
BoTtlSTo.
7 .
6rf
With WosdaiU.
ud
FoK Bn.
;
Biadan. WItb 100
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