The Carbon advocate. [volume] (Lehighton, Pa.) 1872-1924, 1880-05-29
Compiled for the CARSON ADyoo&TL.
POPULAR SCTEatCE FJrES.

POPULAR scr FdtCE FDTES'
Since the eItonsiye frransfactnrs Of oleo-
magazine, an artificial butter, there has
naturally arisen, many questions as to its
wholesomeness, hence we deem few words
from us regarding this new production, It's
properties and mode 6fmanGraGtGTe in order.
The opinion 6r most chemists Of eminence
who Fave given the subject their attention,
is that il is as wholesome On article of diet
- natural butter. It Is f1iade of the fresh
fat Of animals; which having been rendered
in such Il mafiner ss 10 make it quite pure,
odoriess ard tasteless, is churned with milk,
ETC.; by which process it is converted to the
consistency Of and appearance of ordinary
butter. When ready for market, the chemi-
cal composition of the produce is essential
n the safiie as that made from cream, and
in most instances could not be detected from
tbs Genuine No one need be afraid Of oleo-
margarine.
green coloring matter suitable for wall
papers, and other similar uses which is un-
like other greens in containing no poisonous
substances, has been produced by calcining
an intimate mixture of one part Of bichro-
mate of potassa and three parts Of baked
gypsum. A grass-green mixture is obtained,
which, on boiling with water, or on mixing
with dilute hydrochloTic acid, leaves fine
powder of an intense green color. The poi
sonous effects Of arsenical greens is well
known to the public, hence the above new
discovery will doubtless meet with great
favor if as good as claimed, as it is not only
quite cheap but is free from objections on ac-
count of its freedom from danger.
Black, white, red and yellow colored inks
have recently been put on the market by a
house in Leipsic, which are expressly de-
signed and used for writing labels on glass,
porcelain, ivory, marble, mother-of-pearl
and metal. The writing IS applied with a
goose. quill, and when dry is said to adhere
so firmly that it cannot be removed by any
liquid or chemical process whatever.
The making of cog or tooth-wheels OF
leather, prepared from untanned buffalo
hides, thoroughly cleansed from hair, etc.,
in place of metal, has been patented, and a
mandatory already established in Few
York. The advantages claimed for them are
that they have a much quieter and more
elastic run, are extremely durable, aAd re
quire no fabrication whatever.
Those who have experimental in She mat
ter state that, a door standing loosely on its
hinges, that would readily yield 20 a gentle
push, would not be moved by cannon ball
passing through, overcomes the whole force
of cohesion among the atoms of wood, and
the inertia of the door is not effected to an
extent to produce motion.
An application has been made The Eng
lish Parliament, by the North British Rail
way Company for the necessary powers tc
reconstruct the ill-starred Tay Bridge. The
cost ofrcbuilding the structure is sestimateda a
about 1925 900.
The New Orleans Water Works Company
are having constructedsa compound engine
haying daily capacity for pumping 5000,
OOO gallons of water, bciEg more than any
one now in use.
All metals are capabls Of assuming, unde
favorable circumstancesJt the crystalline form
Many of them, particularly gold, silver
copper and bismuth, occur erytalized in ma
ture, and are found either as cubes or octa
chedrons, or in some of the Ge-iative forms
antimony is, however, an exception TO thi
rule, and affords rhomboidal crystals. II
order to crystalize a metal artifTcislly, it i
sometimes sufficient to melt few ounces il
; ertsfble, and having permitted it to COO
on Che sTFface, to pierce the crust formed
and allow the interior to flow out By thi
means, 9ery beautiful crystals of bismutl
may be ohtaired.
Leverrier, the chief astronomer of France
confident in the te=l e-tence Of tire plane
Vulcan, has lately celebrated the orbit @
that mysterious planet from the various re
corded instances of dark spots seeh for fey
hours only upon the face of the sun, and h
now announces that the planet may be look
ed for at about this time, to the east Of tn
sun, and about twenty sun-breadths fror
that orb.
Marble, white, black and granite, has bee
discovered in large quantities in the Ibaral
= mountain range, in Japan, and of qualit
superior 70 the finest in Europe. "Throug
this important discovery" writes proiessC
at the Polytechnic Institute in Tokia, "
care be taken in 4uarrying, and facilities
transport be provided Japan will becom
b" the great marble market for the world.
+ 1t is proposed to construct monster Aoa
l. ing railway station, capable Of earryir
- trains across the English Channel at the ra
d of IA knots an hour. According TO IL
5, scheme, each train would provide accomm
+ dations Cor 1000 passengers, and would r
Il ceive 60 or more coaches.
/ Signor Dario Mazzie, stenographer to Il
h Italian Senate, is said to have invented
S machine which win record a speech, as ia
=, as spoken, and in the regular printed cha
N acters.
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