The Forest Republican. [volume] (Tionesta, Pa.) 1869-1952, 1891-02-25
SCIENTIFIC AND INDUSTRIAL.

MI oAAhOollASAN 20 BAS9SNAS "a 3-sa
pounds to the square inch.
Doctor Koch's lymph is described as
of a rich amber color, covered with
foam.
A Pennsylvania manufacturer claims
that he can manufacture aluminium for
fifty cents per pound.
The city OF Denver, COL, is discussing
the possibility of establishing plant for
furnishing its own electric lights.
Of the 1900 species of flowers now
cultivated in Europe, it is said that only
ten per cent. give forth any odor.
The experiment of chloroforming a
person during sleep has been made sue
cessfully. 1t cannot by any means be
said to be uniformly successful.
A good way to keep modelling clay
moist is to knead dry clay with glycerine
The mass thus obtained continues moist
and plastic for a length of time.
The Hungarian Government favors a
scheme for an electric railway between
Vienna and Buda Pesth, a distance of
$50 miles, to run single cars every ten
minutes.
Celluloid in solution is now being ex-
tensively used as a lacquer for all kinds
of fine metal work and as a wood var
nish, with results that are said to be su-
perior to the old methods.
1t is said that the torpedo boat Bath
urst, that recently made a mean speed of
24.45 knots per hour, represents the last
refinement of mechanical engineering,
and that it hardly seems possible to i'm
prove upon her as long as steel remains
the chief material of construction.
The apparently almost inevitable fail
ure of Some one of the thirty, or there
abouts, machines employed in working
full equipped great gun has caused a
reaction in England in favor of smaller
guns and of doing away with as much
machinery as possible. The Thunderer's
100 -tonners have been taken out and re-
placed with 29-tonners, worked entirely
by hand.
Many authoritative disclaimers have
been recently made against the indis-
criminate use of such preservatives as
borax, boric acid and salicyhc acid, more
especially as applied to milk, cream, and
other articles of food and drink. Their
actual injuriousness is not asserted, but
in many cases it is believed that their
function can be performed better and
more safely by refrigeration.
The steam engines of the world repre-
sent, approximately, the working power
of l, 200, 100000 of men, or more than
double the working population of the
world, the total population of which is
usually estimated at 1, 455, 923, 900 in.
habitants. Steam has accordingly ena'
bled man to treble his working power
making it possible for him to economic
his physical strength while attending tC
his intellectual development.
A prize has been given in France b!
the Society for the Encouragement o
National Industry for process for re
covering tin conf led in the wash o
water from silks ch have been treated
with bichloride tin, for the purpos
of giving weigh By adding milk o
lime to the water, and by properly agi
tating, the tin settles down in a few
hours in the state of oxide, which cal
be readily collected and disposed of.
A quick and easy method for deter
mining whether or not a fabric is sal
wool" is given in the London Lancet
This is to separate the warp from tn
woof and to hold each to a flame. Woo
burns INTO shapeless mass and N,
threads can be traced in its ash. If re
moved from the fire before it is al
burned it ceases to blaze; cotton, on tn
contrary, continues to burn steadily, ant
its ash retains the shape of the thread.