The Ohio Democrat. (Logan, O. [Ohio]) 1886-1906, 1889-12-21
SCIENCE AND INDUSTRY.

Physicians OF eminence now advo-
cate swimming az a necessity in our
physical developms mt.
| "A machine that cuts matchsticks
makes 100000 day. They are ar
ranged over vat and have the heads
put on at the rate of 5000, 900 per day by
| one man.
The secret of making Russian sheet
iron is owned by the Government, and
is such an immense monopoly that 1t is
currently supposed to defray the entire
expenses of the government.
AT Padua the operation of the graft
ing OF a chickens cornea on the human
eye was recently successfully Dccom-
plished. The graft is said to havc united
quickly and formed cornea which was
very transparent, shining, and convex.
The State of Vera Cruz raises about
5000 tons of tobacco per annum, and ex-
ports about 700 tons. England is the
greatest buyer, taking 500, 900 worth Of
manufactured and $4,000 worth of raw,
or a101, 1000 worth out of total of ;e140, 900.
--Honey-farming in Germany yields o
net income to the bee-keepers of 7,000,-
900 marks (about four and quarter
million dollars), and is so important an
industry that the Government affords it
the protection of special laws.
English municipalities sell gas for
from forty-five cents to seventy-fve
cents per 1000 feet, and the product is
better than the average furnished to
Americans. 1t is made from coal at
cost of fifteen cents per 1000 feet.
The annual amount of sugar refined
in the United Kingdom may be put at
100000 tons, employing 4,260 men, or
thereabouts, in the refineries. which are
20 in number. This is exclusive of sub
sidiary and dependent industries. The
capital fixed and floating employed by
the refners, on the basis of an estimate
for the district of Greenock only, may
be put at "a, ,250,000, of which 92, 100000
is fixed.
"A German trade journal advocates
the following method for testing the
quality of roof states. The samples of
the slate to be tested should be carefully
weighed, and then put into boiling water
for quarter of an hour. The water
must, however, be fairly free from lime,
saltpeter and ammonia. The states are
then reweighed, and those that show
the greatest increase of weight are those
most capable of resisting deterioration.
1t is said to have been demonstrated
that the cotton stalk, which has hither-
to been regarded as waste, contains
valuable fiber. A lot of the stocks was
recently sent from Arkansas to a factory
in New York to be operated on in the
same manner as flax and hemp. There
were returned about twenty different
grades of fibrous material from coarse
strands of the stock to the glossy fiber
as soft as silk. Persons are now en-
gagged in perfecting machine that will
spin the material. The fiber is suffi-
ciently strong to make the best of bag
ging as well as cloth as fine as linen.
Hitherto it has been supposed that
English miners in the middle of the
eighteenth century first utilized parallel
rails, like modern railway tracks, in the
transportation of burdens. In "De-
scription of the World" by Sebastian
Munster, 1541, a wood cut has been found
containing representation of little
four-wheeled cart loaded with ore, and
with man behind showing it along
parallel rails. The scene of the wood
cut is an Alsatian mine of the first part
of the sixteenth century. Munster calls
the car in question instrumentum tract
Drum, and mentions that it's four wheels
were of iron