The Republican. [volume] (Oakland, Md.) 1877-current, 1894-08-30
SCIENCE AND INDUSTRY.

pine Iuln Der Is DfeulcIeu from the great
northwestern territory
The Popular Science Monthly says
there is enough nicotine in one cigar to
kill two men if directly administered
Nearly 10 per cent. of the yield
from this years cotton crop in the south
is from cotton-seed oil, once thrown
aside as useless.
Prof. G. A. +. Van Rhyn is author
ity for the statement that there are
900 languages and 1,20O different dia-
lects spoken by the people of the world.
The manufacture of artificial gran
lite is now carried on at California es-
Enlistment by what is asserted to be
simple and effective method, and with
satisfactory results.
"A new thermometer for registering
extreme heat is composed OF d liquid
alloy of sodium and potassium, instead
of mercury. The boiling point of this
alloy is about LOO degrees above. and
its freezing point II degrees below zero,
Mr. Michael has recently studied
the relations between many mites
| (Gamasids) and certain ants in whose
nests they are boarders. A strange
case is that of species of Bdella which
lives habitually in spiders web in
harmonious relations with the other
wise ferocious host.
-Hypodermic injection was discov
cred by Majendie. Morphia is perhaps
the most familiar drug so used. But
the variety of drugs is very great; and
there are numerous cases in which life
| would certainly be lost if there was no
way of indicating the patient except
| through the mouth.
In health and during exercise the
average man has about twenty respira
| tions a minute and forty cubic inches
| are inhaled at each respiration; in an
| hour As, 900 cubic inches of air will be
| inspired; in twenty-four hours l,l52, 900
| cubic inches or about the contents of
seventy-eight hogsheads.
A Connecticut florist is reported to
use coke dust procured from a nearby
| gas house, in place of sand in his prop
| agating bed. Soft wooded plants seem
| to root much more readily in it than
they do in sand The coke dust is
| gritty. never Sours and does not soil
| the fingers as one would suppose.
AT Limoges, France, a great and
| well-lnown center for the manufacur
| ing of chinaware, successful expert
ments have recently been made in the
| application of petroleum as a fuel in
ovens for china. The porcelain has not
been discolored either by gases or by
smoke and the articles were withdrawn
from the ovens having as beautiful an
appearance as if wood OF the best
| quality had been used for fuel, as is
ordinarily done.
The Society of Physicians and
| Naturalists of Germany hold their
sixty-siXth anniversary at Vienna from
the 24th to the 30th of September next.
Among the many who will take part in
! the celebration may be mentioned
| Profs. Helmholtz and Leyden. of Berlin,
and FOrel, of Zurich. The sections into
which the ordinary business OF the
society is divided will on this occasion
be headed by Niennese savants. such
as Gustav Tschermak (rector of the
university, Nothnagel, Wiederhofer.
Kraft Ebing, and Politzer. For the eX-
penses of the celebration the Austrian
| government has voted 10000 tiOrinS-
Medical Record.
1t is well known that the tar ex-
tracted at gas works contains a large
amount of water. in many eases as
much as - per cent. The separation
of this water from the tar is essential
for most purposes to which the latter
is put. and on that account it is fire.
| Quently the custom to allow the ma
terial to remain in wells for some time.
so that the water has an opportunity
of rising to the surface. Recently a
more rapid process has been introduced
to bring about the separation, a process
| identical with that of Swimming milk
in centrifugal separator. The fresh
tar is heated to a temperature of about
81 degrees to reduce its viScosity and
then placed in centrifugal ma chine
revolving at an enormous velocity. The
tar being heavier than the water presses
against the inside of the vessel. leaving
the water nearer the center, where 1t
is SKINNED off by projecting tubes.