The Bossier banner. [volume] (Bellevue, Bossier Parish, La.) 1859-1952, 1888-07-05
SCIENCE AND INDUSTRY.


producing photographs on metal.
"A few years ago cottonseed wero
thrown away as worthless, but to-day
the seed is AS valuable as the lint.
M. Dubus Bonnet, of Lille, France.
has invented process of spinning and
weaving glass into cloth. The warp is
composed of silk. on which the pattern
in glass appears.
If gelatine be suspended in ordi-
nary alcohol it will absorb the water,
but as it is insoluble in alcohol that
substance will remain behind. and thus
nearly absolute alcohol may be OBJ
tanned without distillation.
-..Securite" is the name given to a
new explosive which is said to be flame-
less when exploded, and will. it is ex-
pected, be of especial value as substi-
tute for ordinary blasting powder and
other explosives in fiery coal mines.
An electromagnetic with n carrying
capacity of 800 pounds is attached to Il
crane in the Cleveland Steel Works,
which readily picks up billets and 9TH
er masses of iron without tho aid OF
any other device. A boy is thus ena-
bled to do the work of dozen men.
BY the old method the steel wire
from which watch springs are made
was heated to the proper temperature
and Immediately plunged into oil. In
the new process the wire is immersed
in the oil bath first. and is then brought.
by means of an electric current, to the
desired degree of heat.
Prof. Roberts, of Cornell, urges
the Importance of complex diet for q
man, and especially the use of concen-
trated products, such as beef. milk.
butter and cheese. Only on such
food is it possible to reach the fullest
perfection of physical health and intel
lectual development.
One New York factory turns out
FIVE millions of matches every working
day. The cutting of splints frompine
planks is done so rapidly that about
thirty-six planks, each twelve feet long,
eleven inches wide and three inches
thick. can be cut up into splints during
the course of the day.
1t is known that very elastic
,aoutchouc tubing gradually loses some
of its elasticity; later, the tubes break
on stretching, even if previously laio
in warm water, and finally they crack
if pressed between the fingers. This
change is put down to y very slow for
nation of sulphuric acid by the actor
of moist air on the sulphur contained
in the caoutchouc BY frequent wash
ing with slightly alkaline water tn
action of the acid is prevented; tubes
washed FIVE or six times year remain
ing perfectly elastic.
Fire under water can be produces
by placing small piece of phosphor
Gus in conically shaped glass file
with water, and some crystals c
chloride of potash covering the phos
phorous, and then pouring through
long tube funnel, or glass tube, FEY
drops of sulphuric acid down on tn
mixture at the bottom of the glas'
Tongues of flame can be seen fiashin
up through the water. The intens
chemical action produces sufficier
heat to flame the phosphorous undt
the water. Where there is sufficier
heat and oxygen fire will burn, wheth'
in air or water.
Grape juice is now pressed I'M
| bottles, and then olive oil is poured
| at the top of each bottle. This effec
/ ually excludes the air, and none ca
/ work down into the wine to ferment
, At the same time any air that was
the juice finds its way up through Il
: oil. The oil is sopped up with cotto
when the bottle is uncorked. The &C
$ ton absorbs it little by little. All tn
t is needed is little patience. This a
r of keeping unfermented wine W
3 practiced by the Egyptians mai
4 years before Christ But 1t was loi
Q 1t has now been rediscovered. and
K couiuo into general use