The Fulton County news. [volume] (McConnellsburg, Pa.) 1899-current, 1906-06-27
ksa2o 2oPUIAR,
NAscIENcE'

; NllM 49, q
The smallest vibration of sound
be distinguished better with ope
| than with both.
Only one person in FIFTEEN has p.
feet eyes. the largest percentage ~ \
fects prevailing among fair-ha,,.,
people.
The primary cause OF sour mill
the growth of certain bacteria TINT a..
always very numerous In the mir oSs
cannot be kept out of the milk. Tho.
are most abundant during damp. bes,.
weather, which usually accompanI.,
thunder storms, as such weatber I.
particularly favorable to their deyslon
ment. Hence, the popular notion tb',
thunder storms make milk sour.
A testing apparatus for varniA
supplying a needed standard, has beo'
brought out In Scotland by Professm
Baily and DR.. Laurie. 1t includes
blunt steel point pressed down BY
spiral spring, and this point is drawn
over a dry coat of the varnish on glas.
the pressure being increased maI
the varnish is scratched. The pressu,s
being known, definite measure o,
the toughness and hardness of the var
nisb Is made available.
Liquid air blasting cartridges, as d.
scribed by n. Jacquler, are made BY
packing powdered charcoal in a case
of stout paper, and covering this with
an asbestos wad through which
paper tube passes to the bottom oi
the cartridge. When ready to use
liquid air is poured into the tube the
cartridge being fired by a fulminah
cap in the usual way. The firing should
follow the filling within ten minutes
rs the liquid air gradually evaporates
Mr.. w. e. Scarrltt. formerly presL
dent of the Automobile Club of Amer
lea, says, in Casters Magazine, that
he expects in the near future TO see
very fair runabouts sold for $500, and
touring cars of similar grade for
$500. He also predicts that in time
prices will be still lower, so low, IN.
deed, that the average city workman
will be able to own his own automobile
as he now owns his bicycle. so that
he can keep his family in the country,
and ride TO and from his work.
Why the teeth of some people decay
early while those of others continue
sound throughout a long life is a prob.
lem that appears to have been only i'm.
perfectly solved A European invest
gator, DR.. G. Risa, has lately analyzed
the saliva of 219 children, averaging
thirteen years of age, and has con.
firmed the idea that there is rela.
tion between the alkalinity of the sal.
iva and dental carries. A highly aka.
line saliva insures good teeth. He has
made many experiments to determine
how an acid or slightly alkaline saliva
may be made decidedly alkaline, and
has proven that diet containing much
lime has a marked influence. and does
much to keep the teeth in perfect con
dition.
Cheap oxygen is the one important
product thus far obtained from liquid
mir, for which such extravagant prophe.
cies have, been made. AS the nitrogen
and oxygen of the liquid air return to
the gaseous state at different temper
atures, it has proven to be possible to
separate them by fractional dstilla-
lion, and as the evaporation of the
gases cools the air entering to be COM
pressed in the apparatus, the process
Is very economical. An idea of this
efficiency has lately been given by NJ.
Georges Claude. His plant produces
one thousand cubic metres of oxygen,
with purity of ninety-six to ninety
eight per cent. in twenty-four hours,
and the cost in France is only one
twentieth of that of oxygen from the
electrolytic decomposition of water.