Grant County herald. [volume] (Lancaster, Wis.) 1850-1968, 1881-02-24
scnafs OF SCIENCE.

Il
Chambers Journal describes factory
where the hammering OF fifty copper
smiths was scarcely audible IN the room
below. their benches having under each 7
leg rubber cushion.
A MAGNETIC sand, imported from the
Isle of Bourbon, and since found near
Morbihan. is said by III. Edard to have
the property of rapidly reyiylng plants
which had shown pronounced symptoms
Of decay through disease.
a VIEW air thermometer, by M. Miller,
consists of an iron support, fitted at its
MINER end with two tubulures, IN which
are fixed the two tubes OF the manome,
ter. The closed branch bears thread
Of Opaque glass, soldered IN Its SIDE at
the point where the large tube JOINS the
connecting tube.
THE microscope is wonderful lnstru-
ment. 1t tells the murderer that the
blood which stains him is that OF his
brother. and not of the other life which
he pretends to have taken; and, as
witness against the criminal, it, ON one
occasion, appealed to the very sand Oh
which he had tread at midnight.
THE Scientific american feels con-
strained emphatically, though regret
fully, to condemn Pharaohs serpents rs
dangerous toys. Perhaps, 1t says, they
may be permitted among the brliiant
experiments of the chemical lecture, but
for children to play with--''ot at ali.
Mercurial fumes are hardly conducive to
health.
A CONSIDERABLE silkTcrm is announced
from Nevada that vii. cat oak leaves, as
it can't get mulberry, and instead OF
chewing its way out of the cocoon con-
trives to slip out between the fibers, SO
as TO leave all snug behind her. The
| name of the specimen is the Bombyx
| Ouercicus, and it is to be hoped there
isn't any bombast in his pretensions.
THE Scientific american reports
that there is no really good method OF
removing supertiuous hair from the face
except by destroying the hair follicles by
means of a needle introduced into them
beside each hair, TIE needle being male
| the negative pole & I. an electrical battery.
This process is tedious and requires an
expert. Unfortunately there is no easier
or better way.
Mr.. EDIsoN has nearly finished dy-
namo-electric machine having three field
| magnets six and half feet long, and
an armature one and a half tons IN
weight. The armature is connected d.
! rectly to O Porter-Allen engine of 100
horse power. Both the engine and the
| dynamo-electric are mounted upon a
large iron bed. This new electric gem
orator is intended to do what Is usually
done by sixteen similar machines with
| greater steadiness and economy.
A COMMITTEE has been formed in st.
Petersburg under private auspices, 1t
would seem, for the purpose of devising
and collecting apparatus and draw
ings that may assist IN teaching natural
science in the primary schools. The OBJ
iects and apparatus viii be sent from
school to school, and lectures delivered
at each institution ON the subject they
illustrate. There is a strange, modern
sort of quickening influence at work in
Russia, of which the world may hear
more in many ways some Of these days.
IT will be remembered that the arti-
fetal production of the diamond made
last year by a Scotch chemist looked
very much as though small diamonds
had been fractured. None of these
specimens was perfect All of them
were fragments. A step In advance has
been made, however. Dr. Marsden has
lately been able to effect the crystaiiza-
ton of carbon in the cubical form. Pos
SCISSORS of the most valuable natural
gems need not be alarmed as yet. DIR.
Marsden says his crystals are so small
that they are of no commercial value
whatever. The fact that perfect dia-
mond can be produced, no matter how
small, is notable event, and when the
paper describing the process by which
the end was attained is published it vii
command general attention.
In a paper recently read before the
French Academy of Sciences. Professor
Fort gave some startling instances of the
efficacy of artificial respiration. A three.
year-old child had apparently died. and
was considered as to have passed over te
the majority of three and half hours.
At the end of that time Professor Fort
set up artificial respiration and kept M
the process for four hours, when the
child returned to life. A person had
been under water for ten minutes. and
was evidently drowned. DIR. Fournel,
of Billancourt, however, after foul
hours of labor, managed to make natural
succeed artificial breathing, and SO re.
animated his patient. In some instances
artificial respiration will be found of
great efficacy in removing poison from
the lungs and glands. In any case Of
as0Iyria hope should not be abandoned
until hours of trial of artificial respira-
ton gives no encouraging result.