Idaho semi-weekly world. [volume] (Idaho City, Idaho Territory) 1875-1908, 1890-03-14
SCIENCE AND INDUSTRY.

' 1t is said that ten per cent w aiu"'
added to plaster OF paris while being
burned, renders it as hard as marble on
setting. and capable of taking hno
polish. =,
the working goldsmith is disappearing
owing to the eheapness OF diamonds
Every one who buys an ornament ihslsts
now upon precious stones, ana estimates
IT rather bv the value of the stones than
NV the beauty of the workmanship.
Experiments with new explosive
called ecrasite. which is to dynamite as
100 to 70. have recently been made in
Austria, and are said to have succeeded
40 we'll that the invention has been pur-
chased for military purposes exclusively
Considered as food the strawberry
would hardly be rated as very nutritious.
The small amounts of food constituents
nresent are so diluted by the ninety per
cont of water. that to sustain life very
large quantity would have to be con-
sumed.
Photography has attained a recog-
nized position in medicine. There are
amateur photographers on the stan OF
nearly every hospital. and the extern
sions now being carried on at the En-
plish ROYAL College of Surgeons compre-
! hend s'photograph-roOm. Before long
the surgeon will think no more ABOUT
carrying his camera than he does now OF
carving his stethoscope.
Edison has invented new battery
cell for the use of telegraph companies.
It is described as simple cylinder OF
zine in which is placed thick stick OF
caustic soda, and the cell is then filled
with water 1t is said to possess mar
velous potential energy, with mini
mum of internal resistance, and bat
terry will work as we'll in wet weather
as in dry. There is no polarization and
the zines never require cleaning.
Corn husks are utilized in Austria
in the manufacture OF paper. Inc
husks are boiled with an alkall in tubu-
lar boilers. The glutinous matter IN
pressed out from the fibers The short
fibers are used, making paper stronger
than the same weight made from cotton
or linen rags, being specially adapted
for pencil drawing, stenographlc writ
ing, and water colors In point OF dura-
bility it is said to exceed paper made
from any other material. When the
gluten is left in the pulp the paper is
exceedingly transparent.
The quantity of timber used yearly
in the mining industry is enormous. In
the Anaconda mine alone. near Butte
CITY, Mont, SO, 600 feet of timber are put
under the ground daily, or at the rate OF
80, 600. 600 feet year. At the smelling
works at Anaconda, belonging to the
, same company, there are $50 cords o.
, wood used daily, or IS, 700 cords year
Nearly 1000, 600 cords of wood are KEEP
on hand. All the timber used for mining
, purposes can be legally cut from govern
ment laud, and the mining companies
never fail TO avail themselves of thu
privilege when possible.
Slate is usually quarried either b,
blasting it out in large slabs or by split
r ting it off with wedges. The slabs are
split into sheets by driving wide THU
g chisels between the layers, and thes'
Q sheets are in turn cut up into the size
e required. In this country machiner,
e especially adapted to the purpose i
e used in cutting and trimming slate
g Large slabs for mantles, table-tops ant
n other ornamental purposes are cut on
u with circular saws and then planned witt
: machines which greatly resemble thos
It used for planning metals. Roofing slate
n are split out rough and squared and hav
g two small holes made in one end for tn
h nails with which they are fastened t
Il the roof.
If -Bromine as disinfectant is said t
II be coming to the front. 1t is an ineX
e pensive by-product Of the manufacture
e of salt, selling at about seventy cents
pound, and in solutions containing on
n part in weight to about eight hundred {
J. water it may be used freely without a
fecting any thing which it may toucl
III A few gallons used daily will remove a
A. ammonacal odors from stables, or fe
re quarts will thoroughly deodorize the Ell
i tire plumbing system of an ordina1
n house. The undiluted bromine
III strongly corrosive, and if it touches tt
le skin causes painful burn.
nc The best way to make pot-pourr
10 or flower mixture for jar, is to pl
-, nothing into it but leaves and salt. A
a. ternate the layers of rose-leaves al
a, salt, pressing the latter down upon ii
"a former. When the scent becomes ey
to dent, the leaves of any other fragra
an flowers may be added such as heliotrop
or lemon, verbena, violet, or even those
\ the geranium. A jar filled in this wi
will prove source of delicious fragran
for many months.-Golden Days.
-. 1t is said that paper pillows are We
cool, and in some respects superior
m feather ones, especially for hospital
III Newspapers will not do so well on q
m count of the disagreeable odor of Il
n printers ink: but brown and viii
H. paper, letters and envelopes, etc, a
st the best. Cut or tear the paper in
le very small pieces, the smaller the bt
rv ter, and put them into pillow sack
ne drilling or light ticking
be Fruit Pudding: Chop six apples fir
CRATE six ounces of stale bread, add s
DIS ounces of brown sugar six ounces
ed currents washed carefully and houre
ul mix all well together with six ounc
ed OF butter, cupful of milk and two CT
re fuls of flour in which two teaspoonf,
Id of baking powder have been thorough
A mixed. If too thick, add more milk
ISIS mixing. Spice to your taste. Put il
S. pudding bag, tie loosely and boil
no three hours. To be eaten with CO