The Penn's Grove record., 1883-09-22
Scientific.

The whistle of a locomotive is
heard 1900 yards, the noise of a train
$500 yards, the report of a musket and
the bark of a dog 1900 yards, the roll of
a drum 100 yards, the croak of a frog
800 yards, and a cricket's chirp 800
yards.
1t is stated as a fact, and is a matter
of study for scientists, that the corn and
vegetables planted in the path of the
cyclone of May II will not grow. Farm.
ers along the line of its travels in Nor
gan county, declare the statement to be
true, and say that corn and potatoes
planted on '~'cyclone ground" will not
even sprout.
1t is a curious fact that in the salt
mines of Poland and Hungary the gal
leries are supported by wooden pillars,
which are found to last unimpaired for
ages, in consequence of being impreg-
mated with salt while pillars Of brick
| and stone, used for the same purpose,
crumble away in a short time by the
decay of their mortar. 1t is also found
that wooden piles driven into the mud of
| salt flats and marshes last for an unlim-
tied time, and are used for the founda,
| ton of brick and stone ediices and the
practice of docking timber after it has
been seasoned, by immersing it for
some time in sea water, is generally
admitted to be promotive of its durabil-
ity.
To make a rubber lubricator for
belts, five parts of india rubber are cut
fine and melted together with five parts
of turpentine in an iron, w~ell-coyered
vessel, then add four parts of resin,
.tir well, melt, and four parts of yellow
wax, stirring constantly while melting.
This mixture while warm is added,
with constant stirring, to a melted mix
ture of fifteen parts fish oil and five
parts of tallow, and the whole is agita-
tated until it has CONCEALED. The mass
is applied TO old belts upon both sides
in a warm place, and when the bel 5 are
in use from time to time upon the
other side. By this treatment they be
come very durable. The South.
Some interesting relics of antiquit,
were lately received at Berlin from
Mayence. They consist of the remain
of piles belonging to the bridge which
once led from Castle to Mayence, ant
which is proved to have been in use fifty
three years before the Christian era
The pieces of wood are trunks of vari
GUS trees, including oak, elm and whit
and red beech. Internally they ar
quite sound. At one end there al,
pieces of iron. Some of the wood is t.
be devoted to the manufacture of
piano case. Prince Alexander of Hesse
has had some ornamental pieces o
furniture made from oak discovered a
the spot referred to, and these article
, he has presented to his son, Prince
/ Alexander, of Bulgaria.
, AT Gaudenfrel, Germany, the ar
fist and g~lass-spinner, A. Prengal, o
Vienna, has established his glass bust
ness, offering carpets, cuffs, collars
wells, etc., made of glass. He no
only spins, but also weaves, glass be
! fore the eyes of the people. The other
wise brittle glass he changes into phi
able threads, and uses them for akin,
3 good, warm clothing by ~introducin,
3 certain ingredients, which r his sec
rets, and thereby changing the entir
nature of the glass. He makes whit,
| curley glass muffs also, ladies' hats o
glass, with glass feathers, which ar
lighter than real feathers. Wool mad
| of glass, it is said, cannot be distin
guished from the genuine article
Glass is a non conductor, and the tim,
may not be distant when it will cause
revolution in dress materials.
-lNo mtdSulcllcht VI tcuupcidtul
is, as we all know, of extreme impor
lance in various chemical and manu-
featuring operations. The ordinar.
! mercurial thermometer will answer fs
every purpose within certain limits
but when it becomes necessary TO meas
ure the melting point of different met
ais, or the heat given oat by different
forms of furnaces or lamps, the Their
mometer must give place to an instru'
ment of another form altogether
Hitherto no really satisfactory instru,
ment has been produced for the exact
measurement of high temperatures
but Professor Talt at a recent meeting
of the Royal Society of Edinburg,
stated that from experiments he had
made with those rare metals, iridium
and ruthenium, he believed that he
would be able to form from them a
standard thermo-electric couple which
would answer the required conditions,
- Chambers Journal.
"A lady stopping at a hotel in Aus