The Cheyenne daily leader. [volume] (Cheyenne, Wyo.) 1870-1884, 1880-11-28
!. IscELI.AxRous.

\ new variety of silkworm, found in
the mountains of Nevada, is said To
produce a very strong and much valued
fibre.
NJ. Aulee has devised a method of
converting iron into steel, and at the
same time producing Illuminating gas.
Iron is placed In a retort with charcoal
or coke in layers, and heated 10 l,6J0
degrees, Fair. fatty matters are then
injected, and, rs oon rs decomposition
has taken place, n jet of dry steam is
passed over the incandescent mass.
The result is said to be that the iron Is
converted into steel, and carburetted
hydrogen is given of from the retort.
Professor Bauschinger tested in 1878
iron taken from a chain bridge built in
lS29, and found that 20 years OF use
had not %perccptihly altered its quality.
lie also examined iron from another
bridge built in ls52, and found that
the average quality remained ms ut the
time OF erection. Professor Thurston
tested wire cable Of the Paramount
suspension bridge, Philadelphia, with
like satisfactory result. 1t is 10 be
hoped that the Brooklyn bridge, will,
ut some future period show rs good n
record.
The proof that petroleum sources are
almost worldwide appears to he album
dant, and its use would also seem well
nigh cocval with civilization. In one
of the louian islands there is a spring
which has yielded petroleum more than
two thousand years. The wells Of Ar
mcnia, on the banks Of the Faro. were
formerly used Tor lighting the city OF
sea at Blku, numerous springs of pc
trolrum have been known from the
earliest times; and those of liangoon,
on the lrawa ldy, are said to have
yielded, before the general introduction
of petroleum among civilized nations.
some iOl. 900 h~ngsheIds OF oil per
annum.
The rapid growth of telegraphy and
other practical applications Of %electri-
city is peculiarly shown in the fact that
the diminution of power, from increased
length Of the conducting wire, has been
80 satisfactorily surmounted by relays
Of power ut fixed stations, that Calcutta
has frequently been thus put into COM
munication with London-a distance
of 1000 milcs-by tho lndo. European
telegraph. II has also been a~scertained
that, including all sources of loss, 30
per cent. OF the original power can be
realized 10y electric wires ut n distance
Of one mile from the motor, and that,
with adequate provisions against heat
ing, il would he 10 danger to transmit
clcctro-motive power to n greater than
to n smaller distance. Thus, by means
Of nm electro machine and wire, u cir
| cular saw Is worked at u distance OF n
mile from the water wheel that turns
the electric machine.
In an article on ''The Ksthetic value
of the Sense of SMELL" in the Atlantic
for December, the writer says that it is
a curious fact that newspapers and books
differ i'll smell almost IS widely
as they DO in style and contents. He
believes this fact has never before
been noticed. 1t has been noticed,
however. Several years ago the writer
knew n young man who could tell
whether the Usgoods, Harpers, Apple
tons, Petersons or L.~ippincotts had pub
lishod n newly issued book, handed
him, simply by smelling of the inside,
without looking at the volume. He
could almost invariably tell whether q
book wa printed across the Atlantic oil
not, and sometimes could tell whether
II WAS English, French oil German nj
though the latter discrimination wa:
no. always shown, rs there Is n great
similarity in the smell Of foreign books,