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20

THE

COMPLETE

PRACTICAL

DISTILLER.

from

the

centre

of

the

head

or

dome,

and

descends

to

the

bottom

of

the

egg,

where

it

enlarges

into

the

form

of

the

rose

of a

garden

watering-pot,

pierced

with

a

number

of

holes.

It

must

be

understood

that

this

tube

is

soldered

to

the

egg

at

its

entrance,

to

prevent

any

other

issue

of

the

vapours

but

by

the

way

intended.

The

first

egg

communicates

with

the

second,

this

with

tha

third,

and

so

on

to

the

last,

by

means

of the

tube

M,

which

is

soldered

to

the

first

egg

at

the

point

K,

and

pro-

ceeds

to

the

bottom

of

the

following,

where

it

enlarges

in

the

form

of

a

watering-pot,

as

in

the

first.

The

last

egg

is

furnished

with

the

cooler

N,

by

means

of

which

the

su

perior part of

the

egg,

where

the

vapours

are

collected,

is

encircled

with

water

to

commence

the

refrigeration.

This

cooler

is

supplied

with

a

cock

o,

to

let

out

the

water

when

it

gets too

warm.

Every

condenser

is

furnished

with

a

cock

like

this,

or

otherwise

their

upper

parts

are

plunged

into

the

common

tub

full

of

water.

This

tub

or

bag,

often

made

of

copper,

has

the

form

of

a

parallelepiped.

The

tube

R

communicates

from

the

second

egg

with

the

worm,

which

is

generally

used

with

two

eggs,

sufficient

to

obtain

brandy

at

18°,

when

they

close

the

cock M,

which

communicates

with

the

second

and

third

egg,

and

they

open

the

cock

r

to

establish

the

conanunication

with

the

worm.

The

pipe

s

communi-

cates

between

the

third

egg

and

the

worm.

When

three

eggs

are

used,

they

operate

as

just

indicated;

they

open

the

cocks

M

and

s,

and

stop

the

cock

r.

The

same

pro-

ceeding

is

observed

when

the

greatest

number

of

eggs

are

i*ni

ployed.

Each

of

these

has

a

tube

that

communicates

with

the