The Colfax chronicle. [volume] (Colfax, Grant Parish, La.) 1877-1981, 1890-03-22
SCIENCE AND INDUSTRY.

=
"A bassian inventor has introduced
most curious and ingenious anemo-
graph or recording anememcter. in
which the same record indicates at the
same time both the velocity and the
direction OF the wind.
"A new heat motor has lately been
introduced which operates without
sAises or exhaust, using the same air
over and over again at each stroke.
ana except for a small amount of Leak
age would run indefinitely by the sim
PIE application of heat and the cooling
medium.
"A ceiiuloid film for positives. which
Ewes the appearance of a photograph
n ivory is now being manufactured.
Il One grade is delicate sea-shell mink.
another white, and the third closely
assemblies ivory, After driving. the
oslsive Prizes ARE flowed with papy.
o"ne s,~rnish. The pictures may be
o ICED either as vignettes or with
~<rgin OF clear film.
II satisfactory tests have been made
~ the new liquid. pyrodene, which
renders wood, textile fabrics and such
lsannamInable materials tireproof The
liquid. which is an English invention,
- made of all colors. SO as to be used
asa substitute for paint, and is claimed
70 render houses entirely fireprooi.
III Pasteur's system of inoculation for
anthrax and splenetic apoplexy is be-
ing successfully introduced on a large
scale In New South Wales The ex-
periments have been SO successful that
many stock owners are anxious to have
<peir sheep vaccinated at once. Pas
teur's agents offer to vaccinate sheep
at the rate of six cents per head. OF
which four cents is for Pasteur's royalty,
and two cents for tho necessary ex-
pcnse.
"a writer in q Buenos Ayres journal
reports having examined the fiber
made from the reeds and rushes of the
Aowlands OF the Parana, and finds the
textiles manufactured therefrom to be
undistinguishable from those made OF
wool Or silk. Blankets. heavy goods
Tor mems wear, lettings, and ..black
silk dress goods are among the ar
ttcles produced from the fiber and are
Pronounced unriyaled for texture,
finish, color, and durability. Paper
pulp Is also made by means of newly
Invested process from these reeds and
vusles.
"A new invention exhibited in Mex
leo is the photographing photophone.
BY speaking in a phosophone transmits
eer, which consists of highly
polished diaphragm. rejecting a ray
oflight this ray is set into vibration
and a photograph is made of it on
travelling band OF paper. If the image
OF this Photographic tracing is pro-
jected by means of an electric arc or
oxy-hydrogen light upon a selenium
receiver, the original speech is then
heard.
8 The cement commonly employed
for fastening the tops on kerosene
lamps is plaster of Paris, which is po-
rus and quickly penetrated by the kerr
osene. 1t is now stated that another
cement. which has no such defect, is
prepared with three parts of resin. one
OF caustic soda. and live parts OF water,
this composition being mixed with half
its weight of plaster of Paris. The
mass sets firmly in about three-quar-
fers Of an hour. and is said to have
great adhesive power, not permeable
TO kerosene. low conductor of heat,
and not specifically attacked by heat
--Stoam pipes OF copper are now made
By electro deposition from sulphate
Of copper solution. The pipe is formed
on an iron core in the depositing bath,
and the copper is pressed by moving
tool as it is deposited. By this opera
ton fibrous strength is given to the
crystalline copper. After the pipe is
thus formed it is subjected to hot steam
which expands the copper shell, or
pipe, and clears of the iron core. thus
separating the two. These pipes have
no joint and are said to be very strong.
tests showing that they break with
strains OF from twenty-seven to forty
ma toms per SQUARE inch.