The Forest Republican. [volume] (Tionesta, Pa.) 1869-1952, 1886-07-21
SCIENTIFIC AND INDUSTRIAL.


The Bartholdi statue of New York is
10 be lighted at night by a shaft-hght
from torch which will be seen ninety
miles out TO sea, and therefore long be-
fore any lighthouse on the coast, and also
by four large lights at the base of the
statue.
After months of search Professor
Jonathan limerick, of William and Mary
College, has discovered the aerolite which
fell in Washington County, Penn, Sep
tember 14th, 1885. 1t was found deeply
imbedded in the soil, Professor limerick
says it is the largest aeroite on record,
and weighs fully 200 tons. Its compost
ton is chromium, nickel, aluminium,
copper, magnesium, and tin.
Professor Stamford, the English Edi-
son, has discovered a new substance
which promises to become popular Mti-
Gle of commerce. "Algine, a residuum
Of macerated fucus (sea-tang) combines
the qualities of mordaut, an esculent
and a superlative adhesive. 1t fixes
variety of colors used by cotton-dyers.
In certain combinations it is as nutritious
us grape-sugar, while in one of its forms
arabic not less than tweuty-six times.
"The great Lick telescope" says the
Boston Herald, ''when mounted and
swung against the sky, will have focus of
ffty-five teet length-nearly fifteen feet
longer than the largest one ever made.
1t will be refractor, which means that
the image is formed directly to the eye
by the object glass, as contradistin-
guished from the Gregorian and Her
schelian telescopes. The gestinstrument
ever known of the latter style was DIR.
Herschels. The tube lacked but eight
inches of being forty feet in length"
ALeteorologists have found that there
can be no thunder and lightning without
rain. When thunder is heard beneath a
clear sky, the reports must either come
from distant clouds or be the result of
some other cause than a discharge of
electricity. Harvest or heat lightning is
produced by distant storm. Thunder
seldom accompanies heat lightning, the
sound reaching only about twelve miles,
while lightning is often seen, by reflec-
tion upon nearer clouds, at much
greater distance.
Professor Bell is confident that tele-
phonic communication may be established
between passing vessels at sea. He believes
n wire a mile in length trailed behind a
ship, will so charge the water with cleo
triclty that vessel coming within half a
mile of another thus equipped may COM
municate with it. "The principle he
says, ''is not new; it is old, with a new
use waiting for commerce to utilize it. /
have experimental in the Potomac, and
marveled at the simplicity of the ap-
paratus and the stupendous importance
of the results"
The results of experiments made thus
far in the publication of water by aera-
tion have attracted much notice. This
method is well known to be based on
the discovery that the action of air in
purifying water is greatly increased by
mixing the air and water under pressure.
A Fairmount, Philadelphia, turbine en-
gine, was converted into an air-pump,
which delivered twenty per cent, by
volume, of free air into the water main,
this being the proportion found neces-
sary to surcharge the water. Analysis
showed that the quantity of free oxygen in
the aerated water, was seventeen per cent.
greater than before aeration, while the
quantity of carbonic acid was fifty three
per cent greater, and that of the total
dissolved gases was sixteen per cent.
greater.