The Daily state journal. [volume] (Alexandria, Va.) 1868-1874, 1873-11-19
SCIENTIFIC NOTES.

The plan Of correcting echo in publ
halls by stretching wires across them from
wall to wall has been successfully tried il
the cathedral at Cork.
AN exhibition is to be held in Man
chester, England, of all appliances and ap
paratus that tends to promote the econom
ic use und saving Of fuel.
1t is a curious fact, as reported BY
Mr.. Livingston Stone, that there are nc
fish in the MERGED river or any of its tribu
taries above the walls of the Yosemite
Falls.
1t is expected that the international
railway bridge at Buffalo, of which an
illustration was recently given in The
World, will be finished and formally
opened some time during the present
autumn.
News has been received of the death
at Quito, Ecuador, in June last, of DR..
William Jameson, an eminent naturalist,
who resided for many years in Quito as
professor of chemistry and botany in the
university.
link is one of the things in which
modern science seems to have made very
little improvement. An analysis of the
ink found on manuscript,of the year 9lo
showed that its composition was similar to
the inks now in general use.
An electrical apparatus has lately
been invented to signal the entry Of water
by leakage into the holds of vessels. When
the water enters 1t establishes current,
and communication is thus set in opera.
ton which gives notice to the officers on
deck. 4
An English veterinarian adduces facts
to show that rabies or canine madness is
very rare in extreme temperatures, while
it is OF frequent occurrence in the Tempe
rate zone. The disease is less frequent in
Spain and southern Italy than in other
European countries.
A French savant has been exper;.
menting upon bimself-not however
in the interests of science = to decide
whether tobacco is injurious to the mental
faculties. While he was user of tobacco
he observed rapid decay in the faculty
of memory; and after six years of reso-
lutte abstinence from the use of the weed
in any form enthusiastically declares that
he has experienced a veritable resurrec-
ton of health, mind, and memory.
--It is said that glycerine mixed with the
Wdtcf III sLeain engine DOlleTS prevents the
deposition of lime salts, and consequently
protects the boiler from incrustation. About
one pound of glycerine to every 800 to 400
pounds Of coal burnt is sufficient for this
purpose. It's, however, affirmed by some
engineers that none of the patent devices
for preventing incrustation are effectual,
and that the only sure precaution against it
lies in the use Of pure water.
AN English scientist has discovered
fact important to farmers. It is that sui |
phite of lime appears to exercise decided |
influence in arresting the spread of decay |
in potatoes affected by the potato disease.
In one experiment the salt was busted |
over some tubers, partly decayed from this
cause, when they were slowed away.
Some months afterward the potatoes were
found to have suffered no further injury.
According to the writer in The Popu-
lar Science Monthly, house should be SO
placed that the direct rays of the sun can
have free admission into the living apart
ments, because the SUMS rays impart a
healthy and invigorating quality to the air,
and stimulate the vitality of human beings
as they do those of plants, and without
sunlight human beings, as we'll as plants
would sicken and die. The aspect, there
fore, should be southeast.