The Ohio Democrat. (Logan, O. [Ohio]) 1886-1906, 1889-01-26
SCIENCE AND INDUSTRY.

The Electrical World thinks that
electrical heating will, at no distant
day, supplant all other methods in
cities.
The number of muscles in an ele-
plants trunk, according to London
medical authorities, is 33, 122, and he
has use for each and every one of
them.
"A new Industrial school, the first
of It's class in the West, has just been
established in St. Louis. 1t is for the
purpose of teaching the art OF engrav-
ing on wood, and night sessions only
are held.
In machine which has come into
use in France for testing steel railway
tires, a succession of blows similar to
those delivered by means of sledge
hammer are given to the tires in place
on their wheel ccnters and revolved on
rollers.
BY spraying the regions of the ex-
ternal ear with ether, Drs. Henoque
and Fridel, OF Paris, render the dental
nerves insensible, and extract teeth
without pain or general anesthesia.
In regard to the preservation OF
timber, the Timberman says: go back
to the ancient forestry rules for cutting
timber, eXtant in Norway, France,
Germany and Britain, in A. D., 900.
and timber will live for ages. That
was simply to never cut oak, ash, yew
or fir for ship building or weather ex-
posed purposes earlier than May or
later than August"
Experiments made for the French
Minister of Agriculture indicate that
sugar is better preservative of meat
than salt. 1t is more expensive, but
the powdered sugar forms coating
retaining the juices of the meat with
out loss, while the nutritive qualities
of the meat are considerably lessened
by the salt.
The latest method OF increasing
the speed of vessels is a screw which is
so designed that the center lines Of
two following blades from spirals rum
ming in opposite directions. The blades
are so curved that one has its leading
part near the periphery, the other has
it near the center. so that each blade
cuts into the water in advance of the
following. 1t is claimed that greater
speed results.
At recent meeting of the American
Ornithologists' Union, Mr.. Ernest f.
Thompson. of Canada, said that some
birds, especially sparrows, have ven
triloquial powers. Birds, when sur
prised in the act of singing will be si-
lent for a moment. and then give forth
Il faint song that seems to come from q
distance, though the singer be not
further than ten feet away. Thrushes
and robins, the lecturer said, also have
this power.
"A better subsistence, better cloth
ing and better shelter are now obtained
with shorter hours of work and less
arduous effort than ever before by all
who have aptitude and industry coupled
with mental capacity which is required
to enable them to adopt the new meth
DDS. Such must be the necessary con-
clusion from a comparison OF the CEN
ditions of the present generation with
the one next preceding it.-Edwar
Atkinson, in Forum.
AT Halle, Germany, the skeleton
like, fibrous covering of species of
tropical cucumber is now being con-
verted into a substitute for sponge, and
is already being exported in immense
quantities to England and other coun-
tries. The curious substance is known
as loofah. 1t is not only valuable as
an adjunct to the bath, but is found USE
full for making inside soles for shoes,
and is being applied to the nnder side
of saddles.
The president of the British Phar-
maceutical Conference recommends the
following plan for the hnmane dispatch
of poultry: "A large, wide-mouthed,
stoppered bottle is kept charged with
an ounce of chloroform. When chick
en- has been sentenced to death, it is
held firmly under the left arm, and its
head slipped into the mouth of the
bottle. A few inspirations follow and
the bird, without struggle, becomes
unconscious. Then, holding it by its
legs, its neck is dislocated by quick
stretch"