Manchester Democrat. [volume] (Manchester, Iowa) 1875-1930, 1905-11-22
,tsHxScienCe |
: Ne:lllventi0n|
~~o~~o~

~~ooAo>0~~~-eSS
Castonite, a double carbide of cal
cium and barium, is new product of
the electric furnace that, like calcium
carbide, is decomposed by water. 1t
was first made by ]. Carter, French
metallurglst.
1t has been decided that the meat of
animals used for obtaining vaccine is
not made unfit for food. The carcasses
of many. calves that have been vac
cinated are sold in the London mar
ket, and their use as food effects
saving of many thousand dollars an
nually.
Attention has once more been called
to the geological indications that dia-
mond drifts may exist in the northern
part of Canada. This idea, to which
Doctor Ami of the Canadian Geological
Survey referred in a recent lecture, is
based upon the known discovery of
eight diamonds in the glacial deposits
of Wisconsin,, Illinois and Michigan.
The glacial drift in which the din
monds We're found is believed to have
been carried down from Canadian ter
ritory in the ice age.
An electrolytic process is one of the
new suggestions in color photography.
Certain substances, such as selenium,
have an electric resistance varying
with the degrees Of light, and when
such substance is used as an cleo
trode, and the image projected on 1t,
a galvanic deposit would be formed
with a rapidity varying with the In
tensity of the illumination. Though
the difficulties seem formidable, ex-
periments are stated to be in progress
with anodes Of different kinds pre-
pared by exposing to light in bath
lead oxide in solution with
potash.
Locomotives built in Germany, but
modelled on the American Atlantic"
type, have recently been put into sery-
ice on the fast express line between
Berlin, Cologne and AK la ChapelIe.
They are more powerful and swifter
than the ordinary German locomotives,
and with their large boilers, low smoke
stacks of the same height as the dome,
huge driving wheels and massive and
powerful appearance, together with
their American type of tenders, they
attract much admitting attention, and
1t is believed that their number will be
increased.
Automatic typesetting by telegraph
Is regarded as possibility of the fu-
ture through the development of ex-
listing printing telegraph apparatus. In
England the Murray telegraph printer
was originally designed for typeset-
ting, but this aim was overshadowed
by its use for simple telegraphic pur-
poses. The apparatus is able to ope-
rate automatically the mechanism Of
the linotype typcsetting machine. 1t
Is only necessary to substitute the key
board Of such a machine for the keys
Of the typewriter on which the tele-
grams are ordinarily recorded. Thus
n correspondent of a newspaper could
telegraph an article, which would be
automatically set up in type MS fast
MS it came over the wires. He would
be correspondent and compositor at the
same time.
The art of making diamonds has
been given step forward through a
study Of the diamond bearing meteroic
iron of Canon Diablo. In section
Of this famous meteorite Professor
Moissan has found numerous diamonds
both black and transparent-togeth-
er with graphite, and phosphorus and
sulphur combined with iron, and has
made experiments to determine the eff
feet of silicon, sulphur and phosphorus.
Iron was fused with large mass Of
sugar in n crucible In an electric fur
mace. AS soon as the molten iron had
become saturated with carbon-partly
from sugar-a small proportion of iron
sulphide was introduced, and the cruel
BILE was plunged into cold water. With
rapid cooling as an essential, the car.
bon crystalllzed out from the center of
the mass. The iron sulphide consider.
ably increased the yield of diamond
crystals, as did also the silicon, but
phosphorus had no influence.