The Forest Republican. [volume] (Tionesta, Pa.) 1869-1952, 1893-11-08
SCIENTIFIC AND INDUSTRIAL.

Edison, the electrician, makes rubies
that excel the genuine.
The surface of a mans lungs is esti-
mated at $50 square feet, ten times the
surface of the external body.
In Great Britain the annual sick rate
for each inhabitant is ten days to the
year in the United States eight days.
Nests of the termite ants of South
grouped together in clusters, the tallest
in the center.
Ants are provided with poison bag,
which discharges a fluid having q
strong sulphurous smell, sufficient to
drive away most insect enemies.
The smallest holes pierced by modern
machinery are 1-1000th of an inch in
diameter. They are bored through
sapphires, rubies and diamonds by u
machine which makes $4,000 revolu-
tions minute.
Sir James Crichton Browne, the Eng
lish specialist, is believer in tho
theory that the coming man will be
toothless. He declares that over 10, =
600, 900 false teeth are annually fitted
into the mouths of Britishers
Many larvae of beetles and other in
sects are used for food the bee gives
honey and wax, the coccus mama and
cochineal, the Spanish fly bl:stering
drug, the gall insects an astringent
and the silk worm an article of dress.
Uranus has four little moons-Ariel,
Umbriel, Titania and which,
funnily enough, rise in the north and
set in the south. A single diminutive
one, belonging to Neptune, traverses
the sky from southwest to southeast.
Neither Mercury nor Venus has any
satellites.
Doctor Neisser, of the Hygienic Insti-
tute at Berlin, has discovered in the
city a new cholera bacillus which he
calls vibrio berolensis. The inoccula-
tion of dogs, cats and rabbits with this
bacillus has proved that the vibrie is
fully as potent as the Asiatic bacillus
The Berliners manifest no alarm over
the discovery.
The difference between the atmos-
phere of the best ventilated houses and
the outer air is illustrated by the con-
duct of cut flowers Blossoms that re-
tain their freshness but a day or two
when standing in water within doors
will sometimes live twice as long when
dropped in shady place out of doors,
even without the aid of other moisture
than they obtained from the earth and
air.
Experiments made by the scientists
appointed for that purpose by the
French Government show that the re-
sistance of the atmosphere to the
motion of high speed train often
amounts to half the total resistance
which the locomotive must overcome.
Two engines, of which the resistance
was measured repeatedly and found to
be nineteen pounds per ton at thirty
seven miles per hour, were coupled
together and again tried. In the
second trial the resistance fell to four
teen pounds per ton, the second engine
being shielded from atmospheric re-
sistance by the first.
Great attention is now being paid by
the German military authorities to the
question of facilitating and expediting
intrenching methods. Among other
implements which they are testing is
an intrenching spade, invented by NJ.
de Layeh. When in use it is fitted to
the stock of the rifle, but it is sug-
gested that its proposed place. when
not in use, on the breast of the soldier,
is likely to cause oppression and to
give little or no protection. The whole
Arrangement adds rather more than
three nonnds 10 his imnelimnnts