Savannah morning news. [volume] (Savannah) 1868-1887, 1885-01-11
BITS OF SCIESCE.

A fair quality Of artificial stone is made
of equal parts Of lime and sand. 1t costs
about the sane as brick.
A crane'capabe of lifting ~ tons is in
process Of consti uctiOn at Hamburg. 1t
,,iiI be the largest machine OF the kind IL
Europe.
Paper 4heel.spoAes are coming into use.
The paper pulp IS forced into iron moulds
under heavy pressure, y here II dries and
hardens.
Thoroughly cooked meat, when reduced
&c fine particles, n, GyOu says, is as rea-
Oily alta ked BY the gastric secretiOns as
raw meat.
To restore the colors Of carpets thin
layer of hardwood saw dust well damp
ened with a solution Of common salt
spread over them and allowed to dry is
said to be excellent.
Tle air-bladder found in most fishes is a
rudiment of lung, although it is used not
for respiration but for altering the specific
gravity of the fish. The giils represent
lungs only in functiOn they are totally
distinct parts of the organism.
A French chemist has obtained from
the outer layers of birch bark a black
gum which possesses the ordinary prop
critics of gutta percEa, and also the power
to resist the injurious influence of the air
and the corrosive action of acids.
In behalf of the industrial classes one
of the French societies has recommended
the adjustment Of the circular saw,
whenever practicable, on account of the
danger TO WOrkmen, the extra force re-
quired and the greater am unit Of waste.
Black marble may thus be polished
wash the marble with soap and warm
water, and when it is dry rub 1t well with
furniture paste or French polish, and then
rub 1t over with an old silk handkerchief.
After two or three trials the marble will
become quite bright.
To make pulp from wood or other vege.
table matter RaOul Pietet fret cOmmuni-
nutes the material and then treats the
powder with concentrated suIphurOus
acid and water, under a pressure of five
atmospheres, and at temperatures ranging
from 10 to so degrees Centigrade.
It's estimated that the aggregate length
of submarine cables now in existence is
nearly three times the circumference OF
the earth. Each Of the cables consists on
an average of forty wires; therefore, 25.-
OOOOOC miles of wire are in use to carry
Geographic communications under the
sea.
Railroads in Russia now use coal almost
exclusively as fuel though a few short
lines in forest districts still employ wood,
and the coal is mined for the most part in
Russian territory. Very recently, and for
obvious reasons, petroleum fuel has be-
come general on the roads near the eau
casus.
The more frequent use of lettuce is now
advocated, its leaves being boiled. 1t is
said TO be as palatable as spinach and has |
soothing qualities for oXaluric patients,
to whom spinach is forbidden. Lettuce |
was at one time thought to be good So |
pOritic, but it is losing this part of it's rep !
utation.
Bronze may be renovated and recOlored |
by the use of a mixture of one part of |
muriatic acid with two parts of water. /
After the article is freed from all grease
and dirt the diluted acid is carefully ap-
piled with cloth. When the solution is
dry the article is well polished with fine
olive oil.
The London Atben9un1 mentions the
discovery, after 30 years study, of the
law of sex. which, says the author, sis
determined by what l shall designate as
the superior parent; also that the supe-
rior parent produces the opposite sex"
The law is illustrated in the AtbeRRunl by
many examples.
SatfrOns from the south of France are
said to contain very small quantity Of
not by way Of an adulterant.
ouC Naturally 1 ne aIutnlna IS present
only la the proportion Of OILS to 0.123 per
cent. Certain lycOpOds and RubuS arc
tj0uS are the only plants in which alu-
nina has hitherto been discovered.
Rusted steel, it is said, can be cleansed
by washing with a solution of halt an
ounce of cyanide of potassium in two
ounces OF water and brushing with a
paste made Of half an ounce of cyanide
IF potassium, half an ounce Of CASTLE
soap, an ounce of whiting, and water
enough to make paste.