The Olneyville times. (Olneyville [Providence, R.I.]) 1887-1917, 1889-09-06
SCIENCE AND INDUSTRY.

chemically. IL used in amounts which
are commonly safe, do not sterilize
water.
During the last ten years an oclu-
list OF CronstIdt is said 10 have treated
thirty cases OF photo-electric ophthal-
mia. new disease due 10 the action OF
the electric light on the eyes.
Anew lacquer named "ardonbrite"
has just boon brought out in London,
England. 1t is said to bo proof against
water, steam smoke, sea air. aud sea
water.
Carriage manufacturers are pre-
dieting that in the not distant future
wooden wheels will bee done away with.
and steel wheels substituted on account
Of the increasing scarcity OF lumber
for wheels.
Tho yellow cedar Of Alaska is said
10 furnish timber OF great value, hav-
ing close, fine grain, aud being re-
markable for its strength and dura-
bility. IL is also very fragrant, and,
taking readily fine polish, becomes n
most desirable cabinet wood.
Where filtering is really necessary
II is In general best FOR the community
that il bo done carefully on largo
scale through sandbeds upon which IA
fine layer OF organic and inorganic mat
ter is expressly produced by sediment
alton, because OF its valuable action IN
holding back the great majority OF the
bacteria.
DR. Pcyrand, consulting physi.
clan Mt Nichy, claims to have dis
covered an efficient method OF treating
rabies BY injecting into rabbits the
/ essence OF the familiar herb called
"tansy," he produced what he calls
hydrophobic intoxication, or something
very similar, and with virus thus OBJ
tanned he mingled ten per cent. OF
chloral. He injected several animals
which had rabies with this prophylac-
tic, and he Processes TO have cured four
out OF six.
Another unbreakable substitute for
glass. French invention. consists in
immorsing wire in heated state, In a
thin paste formed OF soluble glass, gel
/ atine, and glycerine, or glucose, in pro-
portions varying according to the uso
| for which the material Is designed.
When nearly dry, the sheets are dipped
| in concentrated solution OF chrome
alum or bichromate OF potash. Any do
sired coloring matter may be incorpo-
rated with the gelatinc, and copal or
other protective varnish applied TO tho
! surface.
"A scientist has discovered the ad =
vantage OF dark skin as IA veil against
the heat in hot climates. The carbon
layer In the skin Of the negro, being
| Opaque, like other forms OF carbon,
must form an eilectual veil, and thus
protect that most important organ be-
! low the true skin, a bodily envelope or
! tissue presenting vast surface Of cir
culating blood, which Is certainly sub
! jcct 10 brilliant illumination when only
] protected from sunlight by the thin
Translucent cuticlc.
The rivctiug Of stovepipc is "A new
departure. Formerly each Of the six
! or nine riyets In piece OF pipe was
/ drawn and driven separately, but by
! the use OF nowly contrivcd riveting
! machine all the rivets are drawn by
one drop Of the hammer, and all Of
! them are set in the same manner, one
! operative with n machine turning out
from GOO TO 1000 joints OF pipe per day.
! The pipe Is formed on cylinder con-
nected with the riveting machine, an
! arrangement which makes IL uniform
In size and leaves the lap smooth and
free from buckles. Easy OF operation,
! the apparatus IL said 20 do the work
| perfectly.
So iudcstructblc by wear or decay
/ Is the African tcakwood that vessels
built Of IL have lasted fully 100 years,
20 be then broken up only on account
Of their poor sailing qualities on ac-
| count OF faulty models. The wood in
/ fact, Is one Of the most remarkable en-
/ plOycd In human industries on the
score OF It's great weight, hardness and
durability, It's weight varying from
some forty-two 20 Gfty-two pounds per
cubic foot II works ensily, but be-
cause Of the large quantity Of slick CON
taincd in II the tools employed in It's
manipulation arc in short time worn
away IT, however, possesses the ad q.
vantage Of containing an oil which
prevents the spikes and other iron
work with which 10 may come ia con
tact from rustiug