Mower County transcript. [volume] (Lansing, Minn.) 1868-1915, 1874-01-15
Scientific.

a. ~ A1"J W. A1OO1AVu w
placing it in a focus of the violet rays
of a well-defncd spectrum. A gal
vanometer is required 10 show the
magnetization.
IT ia proposed in England to con-
struct and ~eighty-ton ritled gun. The
largest ever yet made there weighs only
thirty-eight tons. The calibre of the
new gun will be about seventeen
inches.
IT is a curious fact that the seven
asteroids discovered during the past
year we're all first seen in America, and
TO Europeans is due the credit of beng
the first to detect the seven comets
which have made their appearance
during the same period.
Mr.. JANsON recommends the use of
immersion lenses or "aquatic nozzles"
in the case of microscopic detectives
whose angular aperture has been in
creased at the expense OF working focus
until they can no longer come within
reach OF a large portion of mounted
objects.
The Russians are engaged in build.
ing a circular iro-nclad. This vessel,
to be called the Popowka, will be nine
ty-seven feet IN diameter, f1at-b0ttomed.
and will carry a single turret in the
centre containing two eleven inch
steel bre~ech-loaders. She is to be pro-
PEELED by SIX screws equidistant from
each other.
The alleged reply of the English
government on the subject of an Arctic
expedition, as reported. is calculated
to convey a very erroneous impression.
Mr.. Gladstone has requested that he
may be furnished, in writing, with the
reasons for the despatch of an Arctic
expedition, before receiving a deputa~
ton on the subject.
CAPTAIN JONES, Of the smaller Yellow
stone expedition, while at Two Ocean
Pass, q short distance south of Yellow
stone Lake, confirmed q most import
ant discovery. It had been reported
by some of the scouts and miners that
there was a small stream of water
which, close to the pass, was split in
two by a small peninsula, one branch
following the Yellowstone and Missouri
to the Gulf, tho other making its way
into the Snake River, and thence to the
Paclft.
A CEN invented English life
boat, for which much is claimed, is
Every like Il whale" It Is built on the
cigar principle, only very short and
fiat. Those desiring to make use of
it are placed inside, and the matches
batteped down, and then, it is claimed,
that she a withstand the highest
storm waves, or the heaviest surf that
ever ran. People who are not so fortu-
nate as to get m inside berth on the
start will have to wait alongside hang
ing on to chains until the time arrives
when the matches may be safely opened.
The Apocynum cannabinum-Indian
hemp or silk plant, as it is sometimes
called-is very extensively used by the
Indians of Arizona for the manufac.
ture of Irvine and cloth. The bark of
the plant is tough and strong, and
something like fax. The Indians cut
the plant when ripe, anG rub it so as to
separate the fibres, with which they
make very strong and beautiful fishing
lines and a fine thread, which they use
in sewing, and also make into cloth.
In the Department of Agriculture there
is a fine specimen of rope made of this
fibre by the Ute Indians.
Some experiments have been made
recently in England with al apparatus
termed the aerophore. This invention,
it is claimed, will enable n miner to
penetrate at once, and to 8 great dis
lance, into a pit filed with chokedamp,
to remain there several hours, to carry
his lamp with him without danger, and
without depriving him of the free use
of his arms. To prove these positive
assertions, the inventor, armed with
his apparatus, entered a hut which had
been filled with a mixture Of sulphur
GUS and carbonio acid gases, and re-
manned there about twenty minutes.
While in the hut he constructed a box, |
to show the freedom of the arms. 1t
is c'aime@ that it would have been a
good box il the hammer used had not
been spolle1 by the excessive amount
of sulphur.