Sacramento daily record-union. [volume] (Sacramento [Calif.]) 1875-1891, 1883-09-29
SCIENTIFIC GOSSIP.

Inc COunCll Oh aTl5 HdN6 az
last voted credit for the electric lighting
of the principal rooms of the Hotel de
Vile.
Spain is to have the luxury of dining
cars on her railways, under the manage.
ment of special company, which has OBJ
tanned a concession of the right of running
them for twenty years.
In Russia, for locomotives and stationary
engines, the use of native mineral fuel as
compared with foreign is steadily increas.
ing. Some railways not far from coal cries
have. strange to say, returned to the COM
bustion of wood.
The Swedish and Danish Governments
have decided to lay down a new submarine
cable between their respective countries.
The cable, which will consist of four wires,
will be laid from Helsenborg to Elsinore
and by the island of Hveen.
According to DR.. Van Der VEINS re-
searches phosphor-bronze in telephone
lines has about 20 per cent of the conduct
ing power Of copper. silicon-br about
| 20 per cent, while the steel as used in
wires has only about l0.5 per cent.
A concentrated solution of bichromste
ment for repairing articles of broken glass
which will resist boiling water. The &C.
ment is first carefully applied to the sur
face, and after the fractured parts are
brought together the whole is exposed to
the action of the sun.
Professor Hughes finds that the critical
state of soft iron, when it ceases to be at
tracted by magnet, is reached just when
the iron is heated to yellow white, or be-
tween white and red heat. Steel also loses
it's power of being magnetized when it is
heated, and on being cooled 1907 below zero
loses it again. Nickel similarly parts with
its magnetic property at the very low tenn
perature of boiling water.
At the Jardin discrimination Of Paris
there has been an interesting arrival 1t
consists of an entire tribe of Kalmucks
from the desert lands near the Caspian Sea,
There are nine men and eight women, be-
sides several children. With the tribe
were also brought is camels, Is mares and
young horses, 10 Khirghiz sheep, tents, in
struments, arms, etc. The group must be
exceedingly picturesque.
A carbon for electric lighting purposes is
thus prepared by M. Jacquelain 30 as to
remove all the impurities from it:
Gas carbon is subjected Q) to treat
ment with dry chlorine at red
heat for 30 hours ~ to treatment with
hot alksli for about three hours ~ to
immersion 10 hydrohuoric acid lone to two
OF water) at temperature of l5' to 25O;
and AZ to the action of the vapor of a
highly boiling hydro carbon.
la this country in 1882 there were 1872
$50 net tons of lead produced, worth at an
average value of S95 per net ton on the
Eastern seaboard Sl2 624, $50. For the
first half of 1883 the production is esti-
mated at 70 900 net tons, worth, at $50
per too, Sc 300, 600. A very large proper.
ton Of the lead ore smelted is argentifer-
GUS, and is worked for its silver contents,
and not for the value of the lead. In the
census year ending May 81, 1880, the
amount of white lead corroded was report
ed at l23, AT, $50 pounds, worth about S..
TO 699.
TIE discovery of NJ. Heddebault is prov.
ing of considerable value. When cotton
and wool are combined he subjects the
material to superheated steam under
pressure of five atmospheres. The wool
soon melts and falls to the bottom of the
vessel, leaving the cotton or other vege-
table fibre clean and in a condition
suitable for paper making, Afterward the
melted wool is evaporated to dryness,
when it becomes completely soluble in wa.
ter and is called azotine-a substance very
rich in nitrogen and of great agricultural
Importance.
1t is we'll known, says the Industrial
Chronicle. that the round form ia the best
So oh;yonavu in unrt shona II facilitates
the escape of the smoke and gives less hold
for the wind, besides requiring less mate
rial for construction. Round chimneys are,
however, difficult to build, and in come
places the want of workmen able TO make
the round kind has compelled the adop-
ton of square or oetagonal forms. To OBJ
viate this European firm makes bricks
in the shape of wedges, and corresponding
with the radius which the chimney is to
have. !