Daily Los Angeles herald., 1881-04-08

PALos VERDEs.
Scientific Miscellany.
A very beautiful mineral-to
which the name OF "hiddenite" has
beon given was discovered not
long ago In North Carolina by w.
e. Hidden. 1t 10 the fret purely
American gem found, and 10 very
valuable,
Professor Clebs of Prague has dis.
covered . peculiar microscopic
growth In the remains Of patients
Who have died OF typhoid fever.
II II not found In the Of persons
whose death has been caused by
other diseases.
Anlnstrumsnt called the marga-
fimetsr has been invented by two
pArlsiAn chemists. for detecting the
presence Of margarine In butter.
IL u based on the different den.
sites Of butter and the greasy sub
stanteeS substituted for 1t or mixed
with It.
BY means Of . strictly vegetable
diet, DR.. Hureau de Villeneuvs
atAtse that he has succeeded in rid
ding himself Of attacks Of equity
zhsumatism, with which he had
been afflicted for years, and Of
which several Of his ancestors had
died.
The object glass for the Lick Oh.
oorvatoTy telescope 10 to be three
fest In diameter, and. II cessful,
will b. the most powerful instru.
nsnt Of the kind ever made.
About three years will be required
60 finish the telescope.
II. Rouger has described to the
French Academy violent storm
q Laigle in September last. Be-
tween $50 and II p. M. there were
ct least 400 flashes Of Liz htni Dg;
sometimes there were ~ many ~
three flashes per second. The
thunder WAS almost continuous
like kind Of buzzing, interrupted
BY heavy rollings.
Croll has calculated that the
amount Of heat conveyed from
the equatorial regions northward In
tho Atlantic by the gulf stream 10
equivalent to " ,47o, ! csc, OO0, OO0, OOO,.
90 foot-pounds Of energy per day,
which 10 equal to all the heat re.
oeived BY 1850, 935 square miles Of
surface 1t the equator, and more
heat than 10 conveyed by ell the
aerial currents.
Late experiments have shown
that about twenty per cent. Of the
pupils In the deaf and dumb schools
Of London are, by means of the
audiphone, enabled to hear suffi.
oiently we'll to take their places in
the classes of ordinary schools. 1t
r. known that in cases of deafness
whore the auditory nerves are un-
affected, the audi phone enables the
patient to hear with distinctness;
bat where the auditory nerves are
destroyed or diseased, no appliance
Ut present known is Of any utility.
Some curious phenomena-elso.
tsieal shadows 0-caIled-have been
lately described by Herr Holtz to
the 0ottingen Academy. They
are obtained by fixing to one rod
ofan electrical machine large.con.
cave disc having . piece Of silk
without wrinkles adhering to it; at
the point Of the other discharge rod
placed opposite-appears, when
the machine 10 worked, . small,
feeble luminous star, and on the
disc . circle 10 seen. When objects
are interposed the shadows appear
on the luminous circle. They are
mot optical shadows az IL proven
BY the fact that all opaque objects
do not give them. They are bro.
ducsd 10 general only by conduct
ors Of electricity, and insula ting
bodies give little or no shadow. A
glass rod with one end made con-
ductlpg BY heat gives q partial
shadow, which gradually disap.
pears on cooling.
Many people, says the Electrician,
have observed that . blow or Ether
Earring shock will sometimes dis.
pei pain; but the Importance of
nechenical vibrations 40 an ano.
dyne u now engaging the serious At
tention Of physicians. For some
years DR.. Mortimer Granville has
been endesvoring to find q good
means Of mitigating the pangs of
neuralgia by recurring series of
shocke administered to the skin
over the affected part, and he con-
eeructed an apparatus for the par.
pose which has been employed sue.
cessfully on various occasions. M.
Beudst, Of Paris, has, however,
quite recently developed the sub.
ject still further, aud applied the
ordinary tuning fork to the purpose
In question. He was led to do this
BY the experiments Of NJ. Vigour-
Oux, who provoked contractions In
hystsrlcal patients, and subdued
the paine Of nervous cripple by
causing the s0n0rous waves from q
vibrating tuning fork and sound.
Ing board to impinge upon his
limbs. NJ. B0udet improves upon
this Treatment by bringing the W.
orator into actual contact with the
surface Of the body. He does this
by turning fork kept In constant
vibration through the attraction
and rspulsion of an electro IN agnet.
IN which An electric current fiows.
and rod having one end connected
to the fork and the other applied
over the nerve. So efficacious does
it appear to be, that certain kinds
Ct neuralgia, especially In the less
4eep-eeated. nervous, are charmed
away after . few minutes use,
It Was All Right.
lTree Prsss.l
Several people were making pur.
0boooo In Woodward Avenue