Clinch Valley news. [volume] (Jeffersonville, Va.) 18??-2019, 1889-12-13
SCIENTIFIC SCRAPS

An entirely new rose, called tho
'rainbow rosc," was exhibited ut &C.
cent flower show in San Francisco. 1t
is small, and of delicate shade of roso
pink, with darker bars running length
wise of the petals.
After immersion in water for thirty
seven days. specimens of pine were
founi by Professor D. V. Wood to
have been heightened o. 1G5 per cent,
oak 0.OS5 per cent, and chestnut 0. 065
per cent, the lateral swelling being 2 6
per cent. for pine. 3. per cent for
oak, and 3 Is per c.n,. for chestnut.
An English scientist has been making
cxper ments to determine the important
part which light plays in the develop
ment Of animal life. A dozen tadpolcs
wcrc confined in box from which
every ray of light was excluded. The
result was that only two of them dcvcl-
oped into frogs, and those were short
lived. The Others incrca cl coasidere.
bly, in size, but never left the tad pole
form.
The recent discovery by New Eng.
and chemist of Il cheap method Of dis
solving zinc By combining it with hy.
drogen is regarded as most valuable
one. The product is solution called
zinc water, and has the property of
making wood to which 1t ha, bean an
piled absolutely fircproof, and ut very
low cost. This discovery i, likely to
rcvolutionize fire insurance, rs we'll rs
to immensely decrease tho loss by fire.
In New Granada, South America,
grows plant which is lcclliy known
us the link plant" lis juice serves,
without the slightest preparation, US
ink. At first the writing appears rcd,
but in few hour, it assumes a deep
black hue. Several sheets of manu-
script, written with this natural ink,
became soaked with SEA water on their
journey to Europe, bat when dried, the
writing was found to be still perfectly
clear.
A peculiar tendency in idiots to i'm.
PROJECTIONS and disease in the teeth has
been notice | by several physicians and
it has been studied in 100 cases Of
idiots at random. The multiplicity
and variety of the dental lc,so were
remarkable an the cone! usion has been
drawn that idiocy, with or without cpil-
cpsy, predispoics to arrests OF develop.
mcnt and to anomalies of den tition.
The effect rarely appears in the first
teeth, but almost wholly in the second.
In Europe the telephone rs disease
disseminator is under discussion. A
Frcnchman has discovered new dis,r-
der termed 'aural overpressurc, caused
by the constant strain OF the auditory
apparatus in shouting through the tclc-
phone. In some cases tho tinklin9 Of
the bell has affected the ears of prisons
the same way that in ilamcl eyes cannot
bear the light. The patients suffer from
nervous excitability, with buzzing noises
in the eur, giddincss and neuralgia
pains.
Iron bricks. SO called, arc sail to be
in satisfactory use for street paving in
Germany. These bricks are made by
mixing equal parts OF finely ground red
argillaceous clay, with the addition of
5 per cent. of iron ore. The ingrc-
dicnts thus mixed together arc then
moistcned with strong solution Of
suiphate Of iron, to which fine iron ore
Is added. After this, the compound is
shaped in press, dried, dipped once
more into thick slip Of finely ground
iron ore and then burnt in a kiln for
bout As hours in reducing flimc.