Orange County observer. [volume] (Hillsborough, N.C.) 1880-1918, 1888-10-27
SCIENTIFIC AND INDUSTRIAL.

Ata "cycli~t. corSo' in Vienna there
were licNccs and tricycles of two
hun dred different systems.
Constant mo ing Of the avs Affects
tie nerves that l"a,l from the spine to
the optic nerves a1d strain the latter
untli they give ont.
Official trials Of new form of log
have been made on SON Of the French
torpedo boats The 10 is Of bronze, of
cNlindro sonical form, and weighs about
fifty tvc pounds.
OF tie -, q II, 600 feet Of lumber in
GUIDED in the Connecticut River lumber
Company's last drive OF iorS, which have
recently passed over Bellows Falls.
.,olo,oo feet stopped at Bellows Falls
to become paper.
1t IS stated upon med cal authority
that readers should refrain from damp
irg thel- fingers in turning over the
leave, Of library books. a, this is a sure
way to attract any stray baciill that may
he lurking a:ound.
Some remarkable changes have re
Gently been noel by NJ Perrotin on the
j. anet Mars. In a letter to the Academic
| dies Sciences. he reports that the tract Of
iand on both sides of the equator, which
has been named Lydia seems to have
| been submerged by the sea
y primary battery of light weight has
been devised by NJ, Rena,d for working
| balloons. Its positive e!ectrode is a
plate of platinzed silver, and its mega
tive e!ectrode a very thin plate Of non
ANAL 9amatad zinc, the exciting fluid
being mixture Of hydrochIorlc and
chronic acids.
According to the calculations of NJ.
| AdoIphe d'Ass cr, based on the assulnp-
ton that the coincide ace of the carth's
perihclion passage with the summer
solstcc every 2l,00D years marks the
regular recurrence Of northern glacial
period, the last glacial period culml-
mating in $3.50 B. c.
There are now in operation, according
TO Mr. w. H. Preecc, twenty-five electric
tramways in the United States. ten on
the continent Of Europe, and eight in
Great Britain. Mr.. Precce pred cts that
the time is not far distant when cleo
tricity will have come into general use
in rla e Of horse for the cars of city
streets.
The uses Of a .charinc which is a
hundred times swe.ter than sugar, are
thus set down hy the 4 erlrum Dtug2tst !:
Not being a carbo- hydrate like sugar,
i does lot affect the digestive process.
and passes out through the urine with
ont change. By means Of it the food Of
diabetic patients may be sweetened
without unfavorablc iects."
4 curious affection is paradoxical
deafness. Dr. Bohchcron, in note to
the Paris academy of Sciences, lately
stated that the patient is deaf for speech
in Tie silence Of retired room, yet
hears the same in the midst Of noise, as
in a m wing carriage or railway train, or
the street The disorder, which is
grave, progressive and sometimes heredi-
tary is caused by compression of the
labyrinth of the ear
Persons VINO arc unable to resist the
pleasure of reading IN railway cars, and
ho, in consequence, endanger their
eyes ght bv dependence upon tire meager
ampight furnished bv the railroad
companies, can now obtain portable
electric lights, arran. .ed to hang upon a
button of ones coat and with para
bo!ic reflector TO conccntr4te the hight.
The stora1e battery for this lamp weigh.
only pound and half.
The bridges over the Tay and the
Forth, in Scotland, have attracted muc h
attention as engineering works, the first
named viaduct being notable as the
lar-e,t bridge in the world; 1t is only
o3e link in the line Of northern travel
The Sc ond or orth bridge. from North
to south tueenSto,,u and which i