The Ohio Democrat. (Logan, O. [Ohio]) 1886-1906, 1892-05-21
SCIENCE AND INDUSTRY.

During the last seven years the land
under tillage in Victoria, Australia. has
increased by 1000, 900 acres, and the
ratable value of country lands has IN
creased from 955, 200, 900 TO e65, 900, ,OOS
sterling.
In the lumber season just closed in
Minnesota the "cut" for the year was
AZ. 1895 feet, 2O7. .22i 900 shingles and
97,691. 800 lath. This beats the record
of last year by 1O3, 1888, 800 feet Of lum-
ber. 45,OO3, 800 shingles and 17,40O,25O
lath.
The following are a few examples
of the rate of pay of women in London:
Making paper bags, 4d per 1, 900; possi-
BILE earnings, 5s to 9s per week. But
tonholes, Sd per dozen; possible earnings,
IS per week. Shirts, I'd, each worker
finding her own cotton; can get six done
between 6 a. IN. and IL p. m.
Some doctors say that flowing
boards, in addition to tempting lorna
does to blow thro ugh them, undoubt-
edly attract and retain the grip mi
crobes. From inquiries it seems that be-
whislSered gentlemen have suffered
more from tho disease than those who
DR.. Strings Motorcycles typhlops,
the marsupial mole of Australia, is
thought by Mr.. Ogilby to be connect
ing link bet ween the monotrenes (the
duck bill and spiny anteater) and the
marsupials. Several English natural
lists think that its aiiinities are closer
to the monotremes than to the latter
mammals.
An industrial association of Paris
has published the electro-chemical
method of sharpening files. They are
suspended for twenty minutes from a
metal plate in mixture of one hundred
parts water, six parts nitric acid and
three parts sulphuric acid. The cor
rision takes place in the cavities, sharp
ening the edges.
The most delicate scientific machine
yet produced has recently been com
pleted by Prof. II enry Rowland. of the
Johns Hopkins university. Itis intended
for studying the movements Of ixed
stars. and is so delicate that it can rule
1000, 600 lines to the inch. Even with
the strongest microscope, only about
100, 900 lines to the inch can be detected
by the human eye.
Secretary Langley, of the Smith
sonian Institution, says that by put
ing dozen tircfics in cage together
the Cubans obtain a continuous light
bright enough to read by. This light
has no heat and seems to be produced
by no expenditure of energy. In all
known artificial light the waste is over
90 per cent, so that if this waste could
be avoided the light given would be-
nearly 100 times as great as under the
present conditions.
In South Africa nature furnishes
ready to hand a substitute for the fly
paper Americans have so patiently to
prepare, in the shape of plant botan-
cally ROrfdula dentat0. 1t grows several
feet high, and is hung in rooms of the
colonists to catch flies. Just as the arti-
fetal article is here. 1t is closely allied
% the Droscras, the Sun-pews of our
Swamps, made so memorable by Mr..
Darwin's works, in which he shows
that these plants catch insects for the
direct purpose of eating them, that they
are really carniverous plants.
The rapid strides which the south
is making in industrial and material
prosperity are shown by the striking
figures presented by Mr.. Carroll d.
Wright, United States Commissioner of
| Labor, in an address at Nashville. In
| ten years-from 1880 to 1S9O-cotton
mills increased in number from 16l to
| 334, spindles from 500,0 900 to 1000 900
and the value of products from &c., ,OOO,-
600 to s54, 900, 600 During the same
period the capital invested in wooden
manufactures increased from 81 200, 900
to $40, 100000. In 1850 the banking cap
ital of the south was $92, 900, 900; in 1870
it was s171.OOO,OOO. The total capital
| invested in manufactures and establish
ments of all kinds rose from S179, 900, 900
in 1880 to SOL, 900, 600 in 1S9O.-N. Y.
| Hera Id