Essex County herald. [volume] (Guildhall, Vt.) 1873-1964, 1885-07-10
SCIENTIFIC AND INDUSTRIAL.

The mean elevation of this country is
estimated at 1900 feet above sea level,
and the average rainfall at twenty-nine
inches.
Rolls of paper nine miles long have
been made from reground wood paper.
At some of the wood paper mills rofis
four miles long are made regularly.
Paper bottles now made in France are
built from sheets of paper rolled to,
gether and cemented with albumen,
lime and alum. They are said to be inn
eryious to water and alcohol, and hence
are reckoned specially valuable for trav'
elers.
An electrician asserts that in bodies in
which life is not extinct the temperature
rises upon the application of an electric
current, but never in the case of actual
death. This fact supplies test for use
, in cases where life is suspected to remain
in persons apparently dead.
A peculiar black paper of Siam and
Burmah, made from the bark of certain
trees, is used very much as states in
Europe and America. The writing upon
it may be rubbed out by the application
/ Of betel leaves, just as slate writing is
erased by means of sponge.
An Italian ship has been sheathed with
glass plates. cast like iron plates, so as
to fit the hull, to take the pace of cop
per sheathings. The joints of the plates
are made water tight by the use OF
waterproof mastic. The advantages
claimed for glass over copper are its in
sensibility to oxidation and its cxempf
ton from incrustation.
The French society for the encourage
ment of national industry has awarded
the prize for the discovery of a useful
new alloy 10 the NJ. Manhes. The alloy
is prepared by mixing three parts of cop
per with one of manganese, and adding 1t
in small quantities to the molten copper,
after refining and just before casting.
AS copper so treated with manganese is
only very slowly acted upon by sea-water,
it is capable of very important applca-
tions.
NJ. Foye, French astronomer, main
tains that the earth and all the planets
of our system are older than the sun,
which was nebular mass far outside
their orbits and subsequently it passed
over to the center OF the planetary sys-
tenn and consolidated itself as the con-
trolling power. This agrees with Gene
sis, which teaches that the earth, form
less and void, was created before the sun
gave light.
An electric tooth pulling machine,
which is quick and almost painless in its
operations, is said to pull seven teeth in
five seconds. A pair of forceps protrudt
from a nickel tube which is connected
with wire. The forceps are applied tt
the tooth, the operator touches spring
a spiral arrangement within the tub
winds up in wink, draws down th
forceps like flash, and in an instant tn
! tooth is jerked from the jaw and o"1t o.
& the floor.
I A scientist lecturing in Philadelphi
$ on coal. saws it takes prodigious amour
e of vepetable matter to form layer
:, coal. That 1t is estimated that the presel
vt growth of the world would make lay
only one-eighth of an inch thick, al
,hat it would take 1000, 900 years
d form a coal bed 100 feet thick. I.
W United States has an area of 440, o
o' square miles of coal fields; 100, 600, .
al tons of coal were mined in this count
le last year, enough to run a ring arouI
IL he earth at the equator 81 feet WI
o' and 81 feet thick, and there is enou
$, coal in the United States to supply t
u whole world for a period of 1900
el 1000 years. When coal is burned for
~ Illuminating purposes at least ninety |
ne cent is wasted.