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120

600

MISCELLANEOUS

VALUABLE

RECEIPTS.

No.

233.

Seed-Lac

Varnish.

Take

3

ounces

seed-lac,

and

put

it,

with

a pint

of

Bpirits

of

wine,

into a

bottle

of

which

it

will

not

fill

more

than

two-thirds.

Shake

the

mixture

well

together,

and

place

it

in a

gentle

heat

till

the

seed-

lac

appears

to

be

dissolved

:

the

solution

will

be

hastened

by

shaking

the

bottle

occasional

l3\

After

it

has

stood

some

time,

pour

off

the

clear

part,

and

keep

it

for

use

in

a

well-stopped

bottle.

The

seed-

lac

should

be

purified

before

it

is

used,

by

washing

it

in

cold

water;

and

it

should

be

in

coarse

powder

when

added

to

the

spirit.

This

varnish

is

next

to

that

of

copal

in

hardness,

and

has

a

reddish-yellow

colour

:

it

is,

therefore,

only

to

be

used

where

a

tinge

of

that

kind

is

not

injurious.

No.

234.

Shell-Lac

Varnish.

Take

5

ounces

of

the

best

shell-lac,

reduce

it

to

a

gross

powder,

and

put

it

into

a

bottle

in

a

gentle

heat,

or

a

warm,

close

apartment,

where

it

must

continue

2

or

3

days,

but

should

be

frequently

well

shaken.

The

lac

will

then

be

dissolved,

and

the

solution

should

then

be

filtered

through

a

flannel

bag

;

and,

when

the

portion

that

will

pass

through

freely

is

come

off, it

should

be

kept

for

use

in

well-

stopped

bottles.

The

portion

which

can

only

be

made

to

pass

through

the

bag

by

pressure

may

be

reserved

for

coarse

purposes.

Shell-lac

varnish

is

rather

softer

than

seed-lac

varnish,

but

is

the

best

of

varnishes