Deseret evening news. [volume] (Great Salt Lake City [Utah]) 1867-1920, 1898-02-12

tube appropriate for each cry. At the
same moment the bellows strikes GER
tain obstacles ON a wire. thus yielding
variations of sound carefully studied
to give the desired effects.
Wireless telegraphy. now giving such
encouraging results, appears to be no
new idea. II has been recalled in Paris
that on the cutting OF the wires during
the siege of that city in 1870, NJ. Bour-
bouze. then n tutor in physics at the
University of Paris. conceived the idea
of communicating by electricity with
out wires. His experiments at last
proved successful. on the night of
Jan. l0-l1, 1871, n dispatch was sent
along the Seine from the Pont Nations
al to Saint Denis. distance Of about 25
miles, the ground and water being em>
ployed as conductors. The war closed
before the invention was perfected, and
the work was dropped.
In the gold mines of Victoria, fossil
wood, and even timber supports. are
often thoroughly permeated with par
tlcles of gold which under the micro
scope are seen adhering In patches to
crystals of iron pyrites all through the
interior of the wood. A specimen of
pyrites from the center Of an old tree
trunk is reported to have assayed 30
- SpfN - '''s
a difficulty OF administering medi-
cine to small children is overcome by
Prof. Alsnel, who afilrms that a mix
ture of equal parts of soaD liniment
and aloes will act as a cathartic when
rubbed in small quantity upon the alb
domen.
The rapidity of thought In limited,
and voluntary action of the muscles is
slow in comparison with the involun-
tary movements of which they are
capable. The researches of Messrs,
Broca and Richet show that ten separ-
ate impressions Is the average highest
limit of brain perception. The eN-
nermets prove that each excitation of
the nerves is followed by a brief period
of inertia, and during this period no
new or eppreciable impression can he
made. An individuals voluntary move
ments of any kind cannot exceed ten
or twelve per second. although to the
muscles, acting Independently of the
Will. as many as thirty or forty per
second may be possible.
Arsenlcal poisoning from wall paper
has been explained by Cassie and Em-
merling as due to the volatile arsenic
compounds thrown off by the certain
moulds having the power of lining on
English chemist. now points out that
arsenic even in small quantities Is
poisonous to these moulds. which are
able to live by freeing themselves of
little arsenic in volatile form. but
would be destroyed " the poison Were
present in any considerable amount
The most dangerous paper is Therefore
likely to be that containing mere
trace of arsenic. Dyed and printed
fabrics very frequently contain traces
of arsenic, and 1t is urged that pre-
cipitated borate of copper be substi-
tuted as green pigment for all
arsenical greens.
The nervous system. says Prof. w.
II. Thomson. has n greater store of re-
serve vitality than all the other bodily
systems together and is the only tex
ture that does not lose weight In death
by starvation or other cause. II Is the
last to grow old. As to the mind, II
need not grow old at all, provided II
be supplied with the mighty stimulus
called interest, by which 1t viii grow
steadily, even while bone and sinew
are wasting through age.
Calcium carbide is found by M.
Yvon to furnish simple means of OBJ