The weekly messenger. [volume] (St. Martinsville [i.e. St. Martinville] La.) 1886-1948, 1890-07-05
SCIENTIFIC SCRAPS

without pain by spraying the external
ear with ctLcr.
An instrument has been invented in
Prussia by means of which an exact diff
ferental diagnosis of diseases of the
lung, will be possible. The inventor is
DIR. Janiczewski.
An electric vegetable is said to have
been discovered in India, which has the
power of affecting the magnetic needle
at distance of twenty feet when the
weather is clear and dry.
With the view of testing the rapidity
of electric welding, twenty pieces of
one-inch common round iron bars with
rough ends were recently welded to-
rether by two men in thirteen minutes.
It is claimed that wall paper can be
made in such way that the passage of
low. tensions electric currents will heat
il moderately warm to the touch and
diffuse throughout the room an agreea-
bic temperature.
A further step toward the artificial
production of the diamond has been
made by passing an electric current
through carbon electrodes in a cell con-
tanning fine white sand and electrodes,
the whole being under considerable
pressure.
The application of hydraulic power
to the manufacture of steel seamless
boats is one of the latest things in Elg-
land. These boats are thought to be in
every particular superior to those made
of wood, and can be made at about the
same cost.
1t is now proposed that London shall
dig the deepest hole. The pit would
have an elevator and be lighted By
electricity, and in each str alum would
be excavated a museum for exhibiting
specimens of the minerals, fossils, etc.,
afforded by it.
The conclusions reached by modern
meteorologists are that cyclones of
great intensity are ascending spiral
whirls of wind having a rotary motion
in direction in the Northern hemi-
sphere opposite to the movement of the
hands of watch.
The yield OF the trout spawn in the
fish, breeding establishment at Orval,
Belgium, is stated TO have been ex.
ceedingly good this year. OF the yield
$4,000 eggs were sent to this country
in exchange for like number of Cali.
fornia trout eggs.
Inquiry made in France in order to
carry out the new law giving certain
advantages to fathers of more than
seven children has elected, among
other things, the fact that there arc
2,OOO, 900 households in which there
has been no child.
Experiments recently made in France
with view to discovering the vitality
OF tricEine show that even when ex-
posed TO temperature of 90 degrees to
70 degrees below zero for about two
hours the little animals become as lively
as ever on a return 10 normal temporal
ture.
Professor Poe of Bird port, Conn,
has drowned and resuscitated pet rab-
bit eleven times, and suffocated it also
with the fumes of burning charcoal and
restored it to life. The professor uses
pair of artificial lungs. Artificial
aspirations produce mus cular contrac-
uon and expansion, forcing oxygen
INTO the lungs and drawing out the
deadly gases.
Modern chemistry shows that the
medical lore of the an cicnt hcrbalists
mad much sounder Iasis than had
been imagined. In 1897 water crosses
were recommended for the cure of
scurvy and scrofula. Chemists now
say that the cress contains sulphur,
phosphorus, iodine and iron - sub
stances that are known to be actual