The Pioche weekly record. [volume] (Pioche, Nev.) 1877-1900, 1882-03-18
SCIENTIFIC MIgCELLANY.


The air of London during a fog is found
to contain large excess of carbonic acid
over the normal proportions.
The French Minister of the Interior is
said to be making provision for the wild
ows and children of men who have died
or been wounded while making scientific
researches.
The newly completed observatory on
Mount Etna is 1900 feet above the sea
level, and the clearness of the atmosphere
at that height leads astronomers to ex-
pect some important observations.
The Chinese in Hong Kong are reported
to practice vaccination so thoroughly and
effectually that smallpox never spreads
there, although no port in the world is
more liable to q visitation of the disease
At Antilles, on the southern coast Of
France, remarkable lowering of the
sea-level to the extent Of foot or more
was lately observed, the phenomenon
lasting a fortnight. High atmospheric
pressure is thought by NJ. Faye to have
been the cause, although M. Naudin sug
gested an elevation of the ground, Tides
in the Mediterranean are barely per-
coptible.
In June, 1888, Stephen and Jos. Mont
golfer sent up the first balloon. To com
memorate the centenary of the event, it
is proposed that an international exhi-
bition of "aerial arts be held at Paris
next year. The "aerial arts are to in
clude every industry, science, or art,
relating to gas or the atmosphere, which
is supposed to have any connection di-
rectly or indirectly with aerostatic ex-
periments.
Attention has been called to some new
facts in relation to color blindness. Care.
full Investigations have shown the Chinese
and the Nubians to be practically free
from the defect. Dr. Roberts has OBJ
served that color blindness is most com
mon among persons OF reddish or red
hair, and it is very prevalent among the
Jews, who are the most decidedly red
haired of all known races. 1t is thought
probable, therefore, that there may be
some correlation of color-blindness with
augmentation, and indirectly with racial
pecularities.
Sounds produce in certain individuals
the impression of color. The curious
phenomenon which was first described
by Nussbeumer in 1873, has recently
been made the subject of systematic
study by Hessen Bleuler and Lehman,
of Zurich. They find that the colors as
ISOLATED with different notes differ with
the individuals, being as as rule light
for high notes and dark for low notes.
Chords either cause the colors which cor
respond to their notes to appear to the
mind side by side Or give mixture of
those colors. The same note in different
keys changes in color, and to many per-
sons different colors appear when the
same piece is played by different instru-
ments. Noises, as well as musical notes,
are accompanied by colors, varying with
the intensity and pitch of the sound. OF
500 individuals examined, one-eight were
color-hearers. Four persons perceived
sound as result of sensations of light
and color. A broad, quietly burning gas
flame led to the perception of sound
formed of CIV" and light vowel like
"e;" but when the flame flickered the
sound became that of 81" These cases
can generally be explained by an associa-
ton of sounds with colors by the individ-
ual minds, and the phenomenon is large
ly hereditary.