Watertown republican. [volume] (Watertown, Wis.) 1860-1906, 1882-07-26
CURIOUS, USEFUL AND SCIENTIFIC.
INFLUENCE OF PERFUMES.

n6aIbnY 1DnuonCo on the aGtnOS pn6E6,
converting It's oxygen into ozone.
Cherry, laurel, clover, lavender, mint,
juniper, fennel and bergamot develop it:
but the flowers of narcissus, mignOnette,
heliotrope and lily of-the-valley develop
it in close vessels. Odorous flowers,
cultivated in marshy places, would be
valuable IN purifying the air.
LIGHTS ON HORSES
One of the latest London notions is to
have light on the forehead of the
horse, which is said to give perfect safe
ty against accident when driving after
dark. No fire, no liquids, no lamp, yet
never-failing bright signal light at
great distance. It is made of metal and
covered with a combination OF luminous
compounds; is easily attached and de-
tached; is made In different designs,
and, therefore, very attractive if it
should be carried in the daytime.
PERPETUAL CLOCK.
A clock has been erected at Brussels
which is intended to run forever-or
rather until the machinery wears out
No principle of self-creating power is
involved in it's construction. 1t is run
| by ordinary weights, but one OF natures
|
By means OF fan in a chimney and
operated by the draught of air the clock
is wound, and when the weights are at
their full height an automatic brake is
put in operation which checks the action
of the fan. The clock in Brussels has
been running since September last and
has kept good time.
| EFFECTS OF ALCOHOL.
dead drunk is described by savants
of the Paris Biological Society to be
condition in which there is proportion
of one part of alcohol to 1875 parts of
blood in the circulation. Should the
proportion ever come to be one part of
alcohol to 100 of blood, death would en-
sue. This might happen, and, in fact,
has happened repeatedly, where very
large quantity of alcoholic liquor is
swallowed at one time and quickly. In
ordinary drinking consciousness is lost,
and with it the power to drink more,
before the proportion of alcohol in the
circulation becomes fatal.
GOLD AND SILVER PLATED FLOWERS AND
INSECTS.
At recent meeting of the Physical
Society, Berlin, Prof. Christian exhib-
tied as samples of a new method of pre-
servation a series Of organic bodies
coated galvanoplastically. A mulberry
leaf, crab, butterfly, beetle, the
brain of rabbit, a rose bud, and other
objects, were plated with silver, gold or
copper, and showed all details of their
outer form, down to the finest standings.
AS to the process, it was stated that the
objects to be preserved being put into a
solution of silver nitrate in alcohol, then
dried and treated with sulphureted and
phosphureted hydrogen, form good con-
ductors, which, brought in the usual
way into the galvauoplastic bath, can be
coated with any desired thickness of a
metallic deposit.
USE FOR OLD TIN CANS.
A German paper states that better
method for utilizing old tin cans than
simply to melt off the solder has been de-
vised. E. Rousset first heats the tin, old
or new, In an oxidizing flame, which
burns up all the pure tin and that COM
bined with iron. When this is stopped,
the scraps of iron are sent to be covered
with brown and brittle crust, the
upper layer consisting Of oxide of tin,
the lower of magnetic oxide of iron. 1t
is passed through rollers and then forms
powder that contains both oxides. The
iron that remains after sitting out the
powder makes good wrought-iron or
cast-iron, but is particularly fitted for
precipitating copper. The oxide of tin,
although mixed with oxide of iron, can
be easily worked into tin, and the metal
obtained from it is free from sulphur
and arsenic.
HOW wooLEN-MLL MACHINERY WEARS
OUT.
Much new WOODEN machinery is re-
CURED each year to replenish that which
has been actually worn out. Excellent
authorities establish the average life of
the entire mechanical equipment of
woolen-mill as being twenty years, and
as there are about 5000 sets of machin-
cry in use in the United States at the
present time, it follows that an average
of $50 sets becomes worn out and has to
be replaced each year. Four hundred
and fifty sets OF machinery means 1900
to 1000 cards, about as many self
operating spinning mules, 10000 to 49,
600 looms, and other machinery in pro-
portion. A 200 spindle mule costs $3.50,
and one with 800 costs 5000. To re-
| place the mules alone, therefore, which
are annually worn out in the United
States necessitates @ disbursement of
over 81, 100000 per annum among the
machinery manufacturers, and to re-
place the cards and looms required for
the same purpose costs a much larger
un.-Bost01a Commercial Bulletin.
ZYLONITE.
One Of the most remarkable uses to
which paper has been put of late years
is the manufacture of zylonite, sub
stance which, at the will of the manu-
facturer, may be made in imitation of
horn, rubber, ivory, tortoise she'll, am
Der and even glass. The uses to which
zylonite are adaptable are almost in
finite, but perhaps the most extraordin-
airy is the manufacture of cathedral win
dows. The discovery was made by an
Englishman named Spills, about fifteen
years ago, but it was only about five