The Republican. [volume] (Oakland, Md.) 1877-current, 1877-04-21

In the first place blue glass is better
than painted glass. The latter, however,
answers better for vegetable than for
animal life. Where you paint your
glass, paint the inner surface of each
pane, leaving margin of one and a
quarter inches clear around each square
of blue paint This leaves two and a
half inches of clear glass between every
two adjacent panes for the sunlight to
pass through. In the second place, the
best blue glass-which is the only kind
which should be used for animal and
human life imported from France,
and is of dark mazarine blue color, de-
rived from a preparation of the metal
cobalt, which is fused in the pot with the
ingredients composing the glass. Its
cost varies somewhat, according to the
honesty of dealers. Third, south win
dows are, of course, the best, but great
benefit has been derived from east as
well as from west windows. The great
est amount of electro magnetism is de-
veloped when the sky is clearest, the sun
most brilliant, and the temperature
thirty-two degrees of Fahrenheit. In
this cold, dry atmosphere more electri-
city is evolved, and there is less con-
Quoting power to carry it off than when
the air is moist and warm; consequently
more heat and magnetism are developed
than under other circumstances. Fourth,
it is better to put the blue glass into
the old window sash, or take out the old
sash and substitute new one with the
blue glass, rather than to have a second
sash or frame with blue glass to stand
inside of the old one. 1t is better to
have the sun strike directly through the
blue glass without coming through the
plain glass, or through any other medium.
Though an inner sash of blue lights
answers very well to stand inside of the
original window, the better plan is to set
your blue glass into the original window,
and have but that one sash. More friction
and electricity, and, consequently, more
heat and magnetism, are thus evolved
than when the sunlight passes through
double glass. Light travels at the amaz-
ing velocity of 1856, 900 miles per second,
and passes through transparent or plain
glass with very slight obstruction. 1t
produces no heat in falling through the
latter, The plain glass always remains
cold, even in the clearest sunlight. But
when the sunlight falls upon the blue
glass six of the primary rays are sud-
denly arrested, only the blue ray being
permitted to pass through into your
room. The sudden stoppage of these
six rays of light, speeding with such
tremendous velocity, produces friction;
this friction evolves negative electricity,
which is the electricity of sunlight pass
ing through the cold ether of space and
our cold atmosphere, both of which, being
negatively electrified, impart their cleo
tricity by induction to the rays of sun
light as they pass. When these opposite
electricities, thus brought together, meet
at the surface of the blue glass, their
conjunction involves heat and magnet
ism; the heat expands the molecules of
the glass, and a current of electro-mag-
netism passes into the room, imparting
vitality and strength to any animal or
vegetable life within it. When the at
mosphere of the room becomes thus
electro-magnetizeG, its occupants cannot
fail to derive benefit from being in it.
The mode of applying the blue light is
to bare the part affected and sit directly
in the blue lighter the associated blue
and sun lights-for half an hour asday.
Usually, two or three of these sun baths
will take effect.-Gen. PleasOnt0n.