Arkansas weekly mansion., 1884-03-22
SCIENCE AND INDUSTRY.


An electric arrangement for regu,
lating furnaces has been invented by a
Westneld (Mass.) individuai.-Boston
Post.
The cotton-mills ip> and about Au-
gnsta, Ga, will re Iuire this year nearly
seventy thousand bales, a greater num-
Der than ever before. y
-Photographing on linen will never
wash out. Henry Irving's portrait was
| on each napkin used at the London BAN
quet given him ere he left for America,
| the napkins being intended as souvenirs
| for the guests to taxi 'away.-Hot0grd-
| plter.
The tendons of the tail o. the kan
garoo can be easily split into threads
two feet in length, rivaling silk in
strength, sOftneSs, fineness. beauty OF
color and In sh. Such tendOns for llS-
atures and sutures promise to supplant
| silk almost entirely in surgery. thtca-
| 90 JOdrnll.
A new piano, invented by NJ. Viii
helm Fischer, has teen brOu ght out at
Leipsic. In outward appearance 1t re-
sembles cottage piano, and 1t has the
primary hammer action, but III lieu OF
the familiar It ings tuning forks are
substituted for the purpose of procuring
pure as well as sustained tone.
High chimneys for factories are
now be oming unnecessary, by reason
of the introdu ton of a new kind OF
oven. ANY manufacturer, it is asserted,
can place one of these ovens in his
works and obtain from every ton OF
slack he uses coke worth two dollars,
tar and ammonia worth one dollar, and
iI.OCO feet of gas to generate steam.
The coke. tar and ammonia will thus,
it is claimed, considerably more than
pay for Sla k, wear and tear, etc.-N.
y. Sun.
With view of avoiding explosions
NJ Schlumberger recommends that a
bottle of ammonia should be placed in
in each barrel of petroleum On igni-
ton by accident or otherwise the bottle
would break and the ammoniacal vaporS
would at once ext nguish the fire. Dr.
Pietra Santa proposes to apply this
method to colleries liable to fire damp.
Tanks fill. d with ammonia would, it is
said. stop the combustion, as it could
not C mt :nuc in an ammOniacal atmoS-
phcre.
The endless diversity of uses
which electricity may be put re eived
another illustration recently at the
Court Opera. at Vienna, whe G, by the
simple cXpcdicnt of Suspending tiny in
clndcscert lamps by fine sw nging
wires, the effect was produced OF
swarms of fire les liiit ng about a trop-
ical forest BY switches the current is
turned OF and on at the pleasure of the
operat II, and the effect, as the artificial
fire lies flash and dance in mid-air. is
said to have been electrical, in other
than Il lite. al SenSc.-EIcr0ted R0iiWuY
yOUrn4l.
In Nevada, says a Western cx-
change, the scarcity of water has
prompted the use OF sand to drive an
ov, r-Shot wheel. A wind wheel runs a
belt containing large number of baS-
ketS and these carry the sand into a
large tank and a large stream of sand is
to fall on the ovcr-shot wheel.
which operates iust the same as water.
W hen there is much wind sand is stored
up for use when calm prevails, SO the
machinery is never idle. =. AftGr q peen
a t:;ciimula,cd there is no more trouble on
that score, the same sand eing used
over and over.
The theory as to the increase OF
floods by reason of denudIng the coun-
:rv of its trees is this: When there is a
heavy fall of snow the trees of the for
eSts and on the mountain sides so shade
the snow and pro ect it from the suns
rays that it III Its slow V. and Is weeks,
and may be m pnths, in moving oil, GO
ing so gradually that the st cams can
carry awayehc water without overflow
ing their banks. If the forests are cut
off the snow is subjected t. the full e
feet of the sun of early spring. and is so
rapidly converted into water that the
are full and thci banks arc
over, Oycd (Hir01O ITiGURP.