The Columbia herald. [volume] (Columbia, Tenn.) 1850-1873, 1872-09-06
RECIPES AND EXPERIMENTS.

BLEACHING FEATHERS.-FirStc clean
from greasy matter, then place the
feathers in a dilute solution OF bichro-
mate of potassa to which small guam.
titv of nitric acid has been added. The
yreenish deposit of chronic sesquiOx-
ide which ensues may be removed Dy
weak suiphurous acid, wnen tne
feathers will be left perfectly white
RENDERING CLOTH WATERPROOF
Put half a pound of sugar Of lead and
a like ouantity of powdered alum into
a bucket of soft water. Stir until clear
and pOur off into another bucket-into
which place the cloth or garment !;
soak for twenty-fOur hours and hang
IN to dry without wringing. This
Drocess is said to be very effective.
FILTER FOR CIsTERN WATER
Perforate the bottom of a wooden box
with a number of small holes. Place
inside a piece of flannel, cover with
coorseIy powdered charcoal, over this,
coarse river sand, and on top OF this
small pieces sandstone. r
ZINC WASH FOR ROOMs.-Mix oxide
of zinc with common size and apply 1t
with a brush, like lime whitewash to a
ceiliug of q room. After this, apply q
wash, in the same manner, Oh tne
chloride of zine, which will combine
with the oxide and form smooth
cement with a shining surface.
HARDENING WOOD FOR PULIfiYs.-
After a wooden pulley Is turned and
rubbed smooth, boil it for about eight
minutes. in olive oil, then allow 1t to
,lry after which it will ultimately be-
come almost as hard as copper.
To CLEANSE WOODEN FLOORS
| The dirtiest of floors may he rendered
beautifully clean by the following pro
cess: First scrub with sand, then rut
with I've of caustic soda, using a stiff
hrusb and rinse off with warm water
Inst before the floor is dry, mOister
with dilute bydrochloric acid and then
with thin paste OF bleaching powuel
(bypochloric of lime; let this remalI
over night and wash in the mornih
PRESERVING STUFFED ANIMALs
WITHOUT ARsENIC.-Rub the f1esf
side of the skin with a composition o
/ 10. tobacco ashes, ! lb. alum, 2 lbs
dry slaked lime.
CLEANING OIL PAINT.-Whiting i
better than soap. Use warm Wate
and q piece Of soft flannel. After
wards wash clean and rub dry witt
chamOis.
| MAKING CITRIC ACID.-Treat fresl
lemon Juice with powdered chalk un
till all the acid is neutralized. Cltrat
of lime will be precipitated, whicl
wash and then decOmptee by means Q
diluted suiphuric acid. A precipltat
of sulphate of lime will then be f0rme
while the citric acid dissolveA Fiitel
and then the citric acid will deposl
itself in CRYSTALS when the concentrate
liquid cOols.
VERMILION PAINT.-The tendenc
of na;nt made from vermiliOn (cinns
bar or suIphide of mercury Whe
mixed with white lead, to turn blac
or brown in q short time may be O'
waited by mixing with the dry pain
before adding the oil, one eight OF i
weight of flowers of sulphur.
Fl CLEANING GLAss.-The lenses I
! Z spectacles or spy glasses that hay
! cpme scratched or dimmed by age ma
he cleaned with hydrofluoric acl
= d;luted with four or five times its v0
nme of water. The solution should
: drOpped on a wad Of cotton, on
: thoroughly rubbed ON the glass whic
shouId afterwards be well washed
), clear water. Great care must be exc
cised in handling this acid, as 1t ca
:, quickly into the flesh, often producin
y naipful and obstinate sores.
d PAINTING ZINC.-Oil paint may
: made to adhere to sheet zinc by Goa
r ing the latter with q composition
d one part nitrate of copper, one pa
d chloride of copper and one OF sal an
v moniac, dissolved in sixty-four pal
!, Of water; add to tine solution one pa
d hvdrochloric acid. This should be Il
is from twelve to twenty-four hours
IT dry. 1t acts also as a protection to &
Ie metal against atmospheric influence