Deseret evening news. [volume] (Great Salt Lake City [Utah]) 1867-1920, 1898-03-31

other particles OF coai--and he sep
arates them by drying and Sitting, the
clay passing through as fine dust,
while the flm coal Is retained by the
sieve. The coal contains little ash and
IL adapted for various purposes. white
the separated dust has proven not
wholly useless.
German figures credit various woods
with the following heating capacities:
Linden, l. FIR, 0.99; elm and pine. O.s,:
willow, chestnut and larch, O.97; maple
and spruce, OBS. black poplar, 0.g5;
alder and white birch. 0.9i; oak. 0.92;
locust and white beech. 0.9i; and red
beech. 900. Modern scientific re-
search gives us another surprise In
thus showing that the soft woods have
greater heating power than the hard.
A remarkable object that rather
resembles some obscuring medium
than nebuln' Is the unique discovery
in the constellation of Perseus lately
made by Rev. T. T.. Espin.
A bar of soft metal is used on
Dresden electric lines instead OF the
trolley wheel. and is claimed to wear
the wire less and to be more con-
yenient.
Frequent sea disturbances that are
tHlltu MhNtt
are recorded in New South Wales. Mr..
II. C. Russell, the government astron-
omer, states that these have a period
of about 20 minutes from crest to
crest. which corresponds to the period
of waves from earthquakes. but It has
been shown that only about l per cent
have really originated In earth move.
ments. About 60 per cent have their
origin in confined waters far to the
south under n low pressure. The low
barometer is accompanied by rise
In sea level resulting in currents that
meet In Bass Straits. producing waves
that are transmitted through Tasman
Sea and are recorded by the Sydney
and Newcastle tide-gauges. Heavy
gales originate at least 10 per cent
more In the Taaman sea. The re-
mainder of these periodic waves.
which somewhat, resemble those that
have been noticed In Lake George. are
believed to be due also to meteoro-
logical causes, although the connec-
ton has not yet been traced
Improvement of the gas engine
seems to offer II promising field for
some inventor. The exhaust gases. In
the average engine are heated to
about $50 degrees +. and technical
authority calculates that reduction
OF this to 300 degrese with the same
initial temperature would increase the
theoretical efficiency from SO per cent
to 76 per cent. External refrigeration
Is thought to be a necessary evil. In
present practice the losses by radia-
tion and conduction are about IS per
cent and only about II per cent of the
total heat of combustion is converted
into available power, and an almost
equal percentage passes uselessly
away with the exhaust gases.
brought to n focus within avessel con-
tanning moist dust-free air Mr.. C. 4.
7. Wilson. an English physicist, finds
that n blush fog becomes visible in
the course of few minutes along the
path of light. The cloud particles re-
main in suspension for hours after the |
light has been cut off. Further ex-
pertinent proves that these clouds I'M
like those obtained by Tyndall and by |
Aitken by the action of light on vari- |
Gus vapors. are due to the ultra |
violet rays alone: and 1t is suggested |
as possible that the particles giving
the blue OF the sky may be due TO
violet rays probably plentiful In
sunlight as it first enters our atmos-
phere.
RED rain dust from n heavy tall
at Melbourne In 1895 has proven
Identical in composition with ordinary
SOIL from volcanic rocks.
During the last ten years n great
many night photographs have been
taken by M. c. Loppe. of Paris, who
has acquired great skill and has OBJ
tained some very remarkable mega
tives. Exposure and focusing offer
the chief difficulties The former, of
course. must be quite long and must
be varied according to the intensity
OF the light and the sensitiveness OF
the plates used. To focus accurately
requires practice and patience, on ac-
count of the feebleness of the lllumin-
ated image on the screen. Between
10 and IL o'clock of an evening of
last May, two distinct and extraordin-
airy photographs OF the Eiffel tower
were secured. the first showing the
tower through deluge OF rain as 1t
was struck by belt of lightning; and
the second giving a view as the
shower had passed to the south and
the clouds were clearly outlined by
Illumination from the distant flashes.
The time of exposure in each case was
about fifteen minutes.
English hotanists have called atten-
ton to the suitability of the spore
dust of certain fungi injecting cereals
for use as coloring matter In the
paints OF artists. Moistened with al
forms water-color pigment of a
fine sepia or deep brown shade. that
may be lightened by mixture with
white, and has proven to be little
affected by sunlight. Similar spores.
It further appears. are used by Jap
lnese ladies' as a pigment for painting
the eyebrows.
A unique forest of immense palm
Ike stalagmites has been discovered
by NJ. Martel in natural pit In the
limestone of the Lozere, France. They
nre at the lower end of an immense
iloping chamber. reached by descend