The Cheyenne daily leader. [volume] (Cheyenne, Wyo.) 1870-1884, 1881-05-25
Weekly Leader,
ISSUED EyERr rHuEsDAr'
Tera.. % s Year I.so Half Year.
SCIENTIFIC.

Poultry is rapidly fattened for market
in France on barley steamed yellow
carrots.
In looking through an egg at a candle,
1t will be found that the light will get
more and more faint as the egg gets
staler.
Doctor Corfield says that it is not a
good plan to eat much of q cheese that
has been allowed to reach an advanced
stage of decomposition. as poisonous
effects have resulted from eating cheese
in that state.
NJ. Clemandot uses fine glass wool
for diffusing the electric beam instead
of ground or opal glass. The glass
wool, which is very line, is placed in
tubes; and the latter are united ut their
sides as TO form a lantern, conical in
shape, with the taper downwaras.
The tubes are closed at the top and
bottom to exclude dust, and il is found
that only about fifteen per cent. OF the
light is absorbed. The opacity can
however be increased by inserting more
-.wool," and the light can be easily
colored if desired.
Utilization of old Steel.zA new pro-
cess of using up old steel has been late
ly patented. The resultant metal is
said 10 possess extraordinary strength
and ductility. The process consists of
mixing up old steel with a patent COM
pound and subjecting the whole to a
furnace-heat; when the particles ANAL
gamate. Steel made on this plan has
been turned out at the Huns,et Works
and sold readily for f45 per ton. The
process is said to be second onl, in
Importance to Bessemer's invention.
and it will be especially valuable as
finding use for old Bessemer steel rail.
The Indestructibiliiy Of Matter.-This
is capable of ready, demonstration BY
preparing a couple OF glass tubes OF
equal weight. each being filled with
pure oxygen and containing 4 few par
ticles of carbon, free from appreciable
amount of ash-that prepared from tho
fine loaf-sugar gives very good results.
The tubes are Of precisely equal weight
and are Theoretically sealed. BY heat
ing one of them the charcoal is caused
to burn and ultimately to disappear;
the tube contents however is of course
found still to balance the other tube.
which has not been heated, as it is of
precisely the same weight as it was Mt
first.
Gliding Solution.-The following
gliding solution. to be used at a temper
ature of from l20 deg. to 1870 deg. Fair.
has been recommended by NJ. +. Rod
in lie Monde de Ia Science-Crystalliz-
ed phosphate of sodium. parts by weight.
60; bisculphite of sodium 10; cyanide
of potassium, 1; chloride of gold, 2'5;
distilled or rain water, 1000: To pre-
pare this bath properly the water should
be divided into three portions-viz..
one of 700 parts and two of 100 parts
by weight. The sodic phosphate is dis
solved in the first portion, the chloride
of gold in the second. bisculphite Of
sodium and cyanide of potassium in
the third. The two first portions are
gradually mixed, and the third is after
wards added. With this solution M.
Rod uses a platinum anode-a wire or
strip-adding fresh portions of the gold
salt as the solution becomes exhausted.
Railways and Population.-A table
constructed by Professor Sturmer Of
Brombery shows the length of railway
in several of the chief countries Of the
world and its proportion to the popula-
ton. In Europe. on the average, there
arc 4-6 kilometres of railway to every
10, 200 inhabitants. Greece has the least
proportion to the population, having
only 00S kilometre to every 10000 Of
the population. Next comes Turkey,
with 1I6, Portugal 80, Roumania "a
Russia 90, Italy 80, and 10 upward in
the scale, Franco having 6.3, Germany
IL, Great Britain 81, and Sweden
heading the list with 1913, though its
total mileage is not one-fifth of that Of
Great-Britain. In Asia 1t appears that
only O,l6 kilometre is averagedto every
10. 900 inhabitants; and in Africa tho
proportion is only 0.l7. In tho United
States the proportion is S2.9 to every
10. 600 of the people; while tho whole
of America has the average Of l7.2,
and in Australia the proportion is l06