Blackfoot news. (Blackfoot, Idaho) 1891-1902, 1892-01-30
APPLIED SCIENCE AND ARTS

luminous crayon has been invented
which enables lecturers to draw on the
blackboard when the room is darkened for
the use of the lantern.
A new extract Of meat called .'oxin'' is
now being made into tablets in France.
They are said TO De as digestible as raw
meat.
After many trials ii is now shown that
color can be given to cotton while growing,
and beautiful red variety Of this article
is now being raised in Georgia.
Scientists show that the mosquitoes of
the Arctic region become more and more
numerous the farther they are beyond the
northern range of the swallow and the
martin,
An important discovery, by means Of
which ordinary soft steel can lie readily
used for all kinds Of tools has been made
by man in Pennsylvania. The process
is still secret
A much sought desideratum, namely.
really practicable method OF waterproofing
leather and raw hides, is claimed to have
been practiced by an Ausuo- hungarian
chemist with much success
A recent Improvement in making barrels
consists in making each alternate sta5e il
soft wood and somewhat thicker than the
others When the slaves are put together
and the hoops driven down, the hardwood
slaves are thus crowded into their softer
neighhors making a tight joint.
Corn husks boiled ii caustic soda are
being utilized FOR the manufacture Of pa
per. The cooking process results in the
formation Of spongy, glutinous paste,
which is subjected TO a heavy pressure so
as TO eliminate the gluten, tine fibre re-
manning being made into paper in the or.
binary way.
A simple and practical method Of apply
ing electricity to railroading has been in
vented by French electrician, The steam
I engine used supplies the electric power TO
motors in each car Of the train, and not
| 20 the locomotive proper This relieves
/ the tremendous strain on the driving
wheels Of the locomotive.
A French manufacturer has discovered
q substitute for celluloid, which he has
named hyaline, which possesses the very
! great advantage of being non, inhamma.
/ bile. Il is composed Of colophone, lac,
4 copal Dammara resin, essential oil of tur-
4 pentine, aud gun cotton, and is described
grantees, odorlesS, transparent and tena-
Cious,
The fact that. in the manufacture of the
4 little incandescent electric light bulbs, the
platinum wire used has hitherto been the
/ most expensive item, is now mea by a pro.
cess for combining glass with other metals,
a process which presents the advantage OF
their being produced at much less cost
An important reason for the employment
of platinum for this purpose has been It's
near approach, in point Of expansion, tc
glass.
Still another plan has been brought for
ward-this time by an English ship of
ficer-for spreading oil on stormy seas
with view TO abatiug their violence, ans
kind of crude oil being adapted to the
purpoN. The oil is contained in a tanl
connected with cylinder placed in tn,
forepeak of the ship, and in such pc
sition that it viii be slightly above tht
water line; from the cylinder two small
copper pipes lead ont through the bows oil
either side, though the outlets of the pipe
are but the sixteenth of an inch in di
ameter il is asserted that the amount o
oil which thus escapes is sufficient 20 hIin
TO state of calunnesS the most tmhulen
waves II is in the cylinder that stre
piston works, forcing the oil several fee
beyond the bows about seven gallons q
oil in the tank and five in the cylindu
| lasting, It is said, four hours with hot
jets steadily running.