The Anaconda standard. [volume] (Anaconda, Mont.) 1889-1970, 1898-12-02

W Ont ana "A nan llA'i6 VI
ether, and the same OF melted ammo
MUM -sulphocyanide. This sleeping Is
followed by a Streaming OF such pres
sure as is required by the nature OF the
stun.
In melting the necessities created by
h dense and continuous fogs OF Lon
don. the various companies engaged IN
furnishing the small but important fog
signals are an active feature. In ext
gent weather conditions. even the
smaller Of the various companies run
ming through the great city's suburbs
have sometimes To issue "A hundred
gross a day OF these signals, whiie
larger ones will use double that uin-
Der. This device H. extremely simple.
consisting Of n pinch Of ~gunpowder and
three percussion caps inclosed in three
small metal cases. one within the 9TH
er, and each closed up with white lead,
WI lie i'm the innermost case are three
nipples. on which the percussion caps
are fitted. the powder being placed
around them. The complete thing is
about the size Of a large watch. and
has appended to il two strips Of lead
which are simply bert round the fange
Of the rail. thus holding the fog sig
nal in position on the top. AS these
little machines are substitutes for
semaphores inc lamps. IL is. or course,
"A matter of utmost Importance that
they shall not fail. IL Is for this rca-
son that there are three percussion
caps and three cases, one inside the
other, So as to exclude wet.
The p~rotracted study Of d~uodecaplex
telegraphy. pursued by NJ. Mercadier.
the well known French scientist, ~
attracting much attention In that u
try. as well as elsewhere. The report
Is that N experiments for some time
past carried on along the Paris-Bor-
deaux line. IL Morse are
worked simultaneously on a single
wire. each sending its signals to the
proper receiver at the end of the lie
"a result obtained by means OF I'M
terrupted currents. That II, cach
transmitter receives it's current
through an electrically vibrated tuning
fork. whose vibrations are of the Pc
Rod necessary to cause ma In
the proper receiving circuit, the latter
having its Standardization and capacity
correspondingly adjusted. The receiv-
err. called a monotelephone. is also
acoustically adapted for damping out
undesired signals. the combination ef-
fecting so complete a sitting that only
a slight and not troublesome murmur
m from h unattended signals.
~ bA'%Nsf aR'As ~ 49,
great value in the arts ~ that brought
forward by Pro Henry Of ~Sarbonne.
France. viz. a device for catching col
oIs. The object to be colored, say a
sheet of waterproof pa pcr. a plate of
glass or a smooth board, is placed il1t
and level I'm a tank or basin, and wa
ter Is then let in, through numerous
little jets from the bottom of the tank
until the object is covered To a sliyht
depth: a drop or two Of volatile So
Tut on Of some gum or resin, tnsOluole
i'm water, is allowed to drop in The
water. and at once spreads itself into
a thin layer over the surface. h
a portion of the volatile solvent has
e~vaporated. leaving an exceedingly
thin film of the resin reposing on the
surface of the waller. the professors
plan is to whistle a tune over II, ard
the water and the film are thus thrown
into rhythm'cal undulations, each rep
%Tesenting "A certain tone. In a short
time the solvent Nanishes entirely and
the film of resin is left floating on inc
water; the latter is. now very gently
and slowly withdrawn from the basin.
and the film is thus gradually lowered
"a the surface of the paper. glass ar
wood object. as the ease may he. When
IL comes into actul contact. the Ch-
ject carrying the film IS removed and
allowed to dry. preserving all the time
the attractive display of ColCrs that
it presented while on the water.
Experiments of an interesting nature
have been made with the new explo-
sivc. liquid air. and with encouraging
results. under the conditions of trial.
This j. reported as having been the
case with tests made on the parade
ground at Munich. and an exhaustive
test ON a large scale Is reported as
having taken place i'm a coal mine at
Ponsburg. not far from Munich, trials
which. continued for months, proved
very satisfactory. The chief advantage
claimed for this explosive is its light
cost. being simply that Of the power
used i'm l~iquefying the air. Even the
fact that after 4 short time the sub
stance ceases to be capable Of explod-
'ng is urged as a recommendation in
one respect. for. II a tonat hangs
fire. there Ia no danger OF the charge
going Off accidentally some time after
/ ~. ,x,I.=fAn - Nt.A