The Iowa plain dealer. [volume] (New Oregon, Howard County, Iowa) 1867-1895, 1890-06-12
SCIENCE AND INDUSTRY.

Nothing Is lost in ivory manufac-
trre. Scrapings and sawdust are burnt
to charcoal and form the ivory black"
Of the artist.
-Galvanized iron is ordinary iron
which has been dropped in molten zinc,
and retains . surface coating Of the zinc
when removed.
A new industry in Germany is the
utilization Of the young leaves OF the
strawberry plant as a beverage. Hav-
ing been carefully dried, they are used
~ approach in taste.
Artificial coffee is manufactured on
an extensive scale in Germany. It is
made from linseed meal, roasted to
dark color and mixed with some glutin-
GUS substance before being passed
through machines. which turn out the
compound in the shape OF a real coffee
bean. When the false bean is we'll
mixed with the genuine product only
an expert can detect the difference.
"A method Of bleaching by electricity
has been introduced into Russia, where
chloride of magnesium, which has hith-
crto been largely used in the industry.
Is rare and expensive. The apparatus
requires little care or attention. the
operator having merely to empty and
refill, from time tO,time, the tank con-
tanning the salt solution in which the
electrolytic apparatus is placed.
Edison, when in Paris, laid great
stress upon the fact that 1t was danger
70, hos l;yr 81 - 90
eonduits through snbterraneous Paris
electrical currents by wires charged
| with high tension currents, and pre-
dicted that explosions would be the re-
suit. Many explosions from this cause
arc now occurring in Paris. and the
newspapers of that city are reverting to
Edison's warning.
| An English medical commission
made some experiments as to the effect
OF tight lacing. Female monkeys were
used. They we're put into plaster of
paris jacket to initiate stays. and tight
bandage was bound about the waist to
initiate the petticoat band. Several OF
the monkeys died very quickly and all
showed serious injuries resulting from
the treatment.
Steel pipes as substitute for cast
iron now form an important item for
! the engineers consideration in the con-
veyance of water. Such pipes are being
adopted for several reasons. As their
weight Is only about one-quarter the
weight of cast iron pipes for the same
service, the matter Of transportation
forms an important consideration. They
are also much less liable to fracture
than cast iron.-Scientific American.
| Everywhere preparations are being
made to use the electric motor on the
street railways. 1t has proved such IN
eminent success in every particular,
and is so much more economical than
either horse or cable power, that it is
destined to become the universal power
for street railway service. 1t is esti-
mated that anywhere from 10000 to
80, 900 horses now in use will be thrown
upon the market, and practically no
buyers for them, because there are no
places for them to fill.-St. Paul Globe.
A new fiber plant has been discov-
cred on the Isle OF Trinidad which prom
ises to be an improvement on ramie. It
was found by an agricnlturist named T.
]. st. Hill. who has called it .'mahol-
tine, "but whose scientific nomenclature
is Abutilon periplocifolinm. The great
thing with this plant is that the ribbons
at nearly all times Of the year are easily
detached from the wooden portion by
simply stripping them with the hand.
and therefore . decorticating machine
is not required as for ramie. When it
is known how readily the stems allow
themselves to be deprived of their coat
ing Of bark and fiber it will be seen
what an advantage this simple fact
gives the new product over many Of the
fiber producing plants.