The Bossier banner. [volume] (Bellevue, Bossier Parish, La.) 1859-1952, 1890-09-04
SCIENCE AND INDUSTRY.

In Chicago carpets are being sewed
through the agency of electric power.
There are 254registered trade unions
in England and Wales. with member
ship of about $50, 900.
"A locomotive engine has been per-
fected in England, and was recently
tried on one of the roads, which can
make, average time, ninety miles an
hour.
The effect of the electric light cur
rent on the compasses of some vessels
is so great that it becomes necessary to
determine how many hours the dynamo
has been running before working out
the vessels reckoning.
Paper is made in France from hop
vines; and it is claimed that the fibre
secured is the best substitute for rags
yet obtained, as it possesses great
length, strength, fiexibility and delicacy.
In cases where there has been exces-
sive vibration noticed with engines
bolted to beams or girders of the upper
stories of buildings hanging heavy
weights from the bottom of the engines
has overcome the vibration almost en-.
tirely.
Aluminium bronze is coming into ex-
tensive use in Germany for propellers
and other fittings for boats. The alloy
consists of 80 per cent. of copper and 10
per cent. of aluminium, looks like gold,
and has the same weight as iron.
Great progress is being made in
rapid photography. Lord Rayleigh has
! photographed a minute jet of water in
the 1OO,OO0th of a second; and new
camera takes ten successive views a Sec
ond on the turning of crank.
"A new disinfectant has made its ap-
pearance under the name of thiocamph.
1t is combination of camphor with
sulphurous acid, containing over sixty
times its volume of sulphurous acid gas,
which, upon its exposure in q warm
room, is gradually evolved.
Experiments have recently been
made in Spain on the action of hunlight
in maturing wines. Layers of new
wine in bottles of colored glass have
been exposed to the direct rays of the
sun, with the result that both flavor and
quality have been improved. In the
south of Europe there has been prac-
tice of ripening cognac by exposing the
bottles on the roof for years.
"A regular industry is being started
in this country in the manufacture Of
gearing for electric railways out of raw
hide. 1t is preferred to metal, as il
makes far less noise and wears better
The material is said to finish up in the
working as we'll as metal. The use oi
this material indicates that very severe
strains are brought to bear upon cogs
not capable. if of metal, of standing the
stress.
The electric microscope promises tC
make some wonderful revelations in the
world of science. At recent medica.
congress in Europe microscopical prepar
ations under magnifying power of IL,
900 linear were made visible to an as
Bemblage of 800 persons. The pulsatins
heart of dog and the heart beats pro
duced by suffocation were successfully
demonstrated.
Experiments recorded by the medi
cal press indicate that most microbes
succumb soon after their victims have
died. Tests were made with nine differ
ent micro-organisms and the bodies o
the animals killed were either buried
or kept under water or exposed to tn,
air. The bacillus of fowl cholera wa
seldom found after three weeks, bu
the tubercular microbe did not los,
its virulence until 204 and 252 DAYS hat
elapsed. All trace of the other organ
isms was lost in from three days to
week, including those of typhoid fever
Asiatic cholera and loekjaw.