Democratic Northwest. [volume] (Napoleon, Ohio) 1869-1894, 1889-05-30
SCIENTIFIC AND INDUSTRIAL.

Huge plates of glass are now cut by
electricity.
The French are making wooden type
with copper faces.
Experiments are being made to separate
by electricity the solids from the liquid in
sewage.
Saw mills a-e to be erected along the
Kentucky Railroad to make $4,000, 900
Ieet annually,
DR.. H. w. Parsons, of Kansas, has in
vented torpedo to be dropped from bal
looms in times of war.
A big oil find has created excitement at
Gallup, New Mexico. 1t is asserted that
the oil "runs in riyulets'' in many places.
The average watch is composed of IT'S
different pieces, comprising upward of
24OO separate and distinct operations in
its manufacture.
A Milwaukee man has designed an ap-
paratus by which he claims that water
may be successfully burned in a cook
stove or ordinary heater.
One of the most satisfactory wax fin
ishes for wood is made by boiling a
quarter of pound of white wax with one
ounce of pearl-ash and one quart of
water.
One DIR. Thenius, OF Vienna, has in
vented a process by which he declares
that good heavy sole leather can be made
from the wood of old red beech trees. He
has applied for patents.
The making of veneered diamonds is g
rev Partisan industry. The body of the
gem is cut from quartz and then by gal.
vanic action coated with solution made
from diamond chips and stones TOO small
for cutting.
A large business in the shipping of
biturninous rock from San Luis Obispo,
Mexico, to Los Angeles, Cal, is in pros
pect. Steamers running down the coas.
take many tons Of the rock for street.
paving purposes.
Insulated copper wire is now sold at es
low a profit as one-eighth of cent a
pound, but some de2lers will not handle
it at that small margin. There is steady
and even increasing demand for machin-
cry for small telegraph. and telephone
plans. ....
A new invention to prevent collisions
d sea, consisting of small plate fixed at
the side Of the vessel, has been very sue.
ces5fully tried on Sle Thames. Electric.
ity is the active agent. The approach ol
another vessel within two miles causes q
bell to sound, and an indicating arrow
shows the direction whence it comes.
A process Of lettering bone or ivory,
by sinking t1,2 letters into the material
in permanent fashion, has recently been
introduced. Thee ivory plates are tax
ing the place Of engraved metal plates for
signs, checks, badges, and so on. Elcc-
trical engineers have also adopted the
new plates, which can likewise be az
piled to organs and piano.-fortes.
Il will probably surprise most people to
learn that both cessation of respiration
and of movement of the heart are rejected
as signs of death by a French lecturer, in
considering the precise moment when life
ceases. Hecrt beats have been known tc
continue for an hour after the body wa:
beheaded, while, on the other hand, they
may temporarily cease in fainting.
The worlds supply of wooden tooth.
pic,ls is furnished by Michigan mill that
first cuts up birch logs into vteneers, three
inches wide, then cross-hackles them, g
hundred at time, into the little sliverS
and drops the good ones at one side and
the broken ones at the other. Then
young squaws pack them up in boxes OF
1900 and send them out to chewing
world.
Alvan g. Clark, o. Cambridgeport,
Mass, the well-known telescope maker, is
constructing telescope with forty-inch
lens for the University of Southern
California. The instrument is to cost
S100, 900, and will be placed on the top
Of Wilson's Peak, which is thirteen miles
from Los Angeles. The lens will be four
inches greater in diameter than that of the
famous Lick telescope, and therefore the