The Princeton union. [volume] (Princeton, Minn.) 1876-1976, 1879-12-31
USEFUL INFORMATION,

hours after breakfast take teaspoonful
OF the following mixture: Chlorate Of
potassa, two drains; sweetened water,
four ounces; wash the mouth occasion
ally with similar mixture, and the
breath will be as sweet as an infants of
two months. -. III y a.
The INFLUENCE OF GAsL1eHr Upon
THE EYE.-The German Minister of
Instruction has issued scientific report
on the influence of gaslight on the eye.
The conclusion arrived at in this re-
port-the result of frequent confer
ences with well-known physicians is
that no evil results follow moderate
use of gas, if the direct action of the
yellow fame on the eye is prevented.
For this purpose screens or shades are
employed. Very grave objections, how
ever, exist to the use of zinc or lead
shades, most evils affecting the eye be-
ing traceable to them. Their use, it is
said, inevitably tends to blindness or
Inflammation, and other harmful effects.
The milky-white glass shade is the best,
as it distributes the light, and has a
grateful effect on the eye. The burner
should not be too close to the head, as
COMPOSITIONS of the forehead and head
aches result from the radiated heat.
The glass plate below the gas, employed
in some places, is especially useful for the
purpose as it causes an equal distribution
OF light necessary where number are
working at one burner the
radiation of heat, and tends to steady
illumination by shielding the flames
from the currents of air. In cases of
highly infamed eyes, dark-blue globes
can be very beneiciallyN employed.
With precautions of this kind, no evil
effects from the burning Of gas can be
feared.
A COTTAGE WATER-FnTER.-Th
who cannot afford to buy water-flter
may easily make one. Stuff piece OF
sponge in the hole of fower-pot, place
above this layer of pebbles, then a
layer of coarse sand, and above this a
layer of pounded charcoal three or four
inches in depth. Another layer of peb-
bles should be placed above the char
coal to prevent it from being stirred up
when the water is poured in. The con-
tents of the hower-pot should be &C.
casionally renewed. But BY small ad-
dition to this . cottage filter may be
made, which. for practical use, is quite
equal to the most expensive filter of
corresponding size. It consists of two
fower-pots. one above the other, the
lower one filed with q sponge and filter
ing layers above described, and the up
per one with sponge only. The up
per pot should be the largest, and if the
lower one is strong the upper one may
stand upon it, or piece of wood with q
hole to receive the upper pot may rest
on the brim of the lower one. The two
pots thus arrang Jed are placed on three
legged stool with hole in it, through
which the projecting part Of the lower
sponge passes, and the water drops into
a Jug placed below. The upper pot
serves as reservoir, and the sponge
stops the coarser impurities, and thus
the filtering layers of the lower one may
be used for two or three years without
being renewed if the upper sponge be
occasionally cleaned. Care muet be
taken to wedge in tho upper sponge
tightly enough to prevent the water
passing through the upper pot more
rapidly than it can filter through the
lower one.-LeisaIre Hour.