The Forest Republican. [volume] (Tionesta, Pa.) 1869-1952, 1888-10-31
SCIENTIFIC AND INDUSTRIAL

At a "Cyclist Corso' in Vienna there
were bicycles and tricycles of two
hundred different systems.
Constant moving OF the Jaws affects
the nerves that lead from the spine to
the optic nerves and strain the latter
until they give out.
Official trials of new form Of log
have been made on some of the French
torpedo boats. The log is of bronze, of
cyliDdro. conical form, and weighs about
fifty-tive pounds.
OF the 20, 900, 900 feet of lumber in.
cluded in the Connecticut River Lumber
Company's last drive of logs, which have
recently passed over Bellows Falls,
1000, 600 feet stopped at Bellows Falls
to become paper.
1t is stated upon medical authority
that readers should refrain from damp
ing their fingers in turning over the
leaves of library books, as this is sure
way to attract any stray bacilli that may
be lurking around.
Some remarkable changes have re
Gently been noted by NJ. Perrotin on the
planet Mars. In letter to the Academic
des Sciences, he reports that the tract OF
land on both sides of the equator, which
has been named Lydia, seems to havo
been submerged by the sea.
\ primary battery of light weight has
been devised by NJ. Renard for working
balloons. Its positive eectrode is a
plate of platinized silver, and its mega.
tive electrode very thin plate of non.
amalgamated zinc, the exciting fluid
being a mixture of hydrochloric and
chronic acids.
According to the calculations of NJ.
Adolphe d'Ass.er, based on the assump-
ton that the coincidence of the earth's
periheliou passage with the summer
solstice every 81, 900 years marks the
regular recurrence of a northern glacial
period, the last glacial period culmt
mating in $3.50 b. c.
There are now in operation, according
TO Mr.. w. II. Preece, twenty-five electric
tramways in the United States, ten on
the continent of Europe, and eight in
Great Britain. Mr.. Prcece predicts that
the time is not far distant when cleo
tricity will have come into general use
in place of horses for the cars of city
streets.
! The uses of saccharine, which is 6
hundred times sweeter than sugar, art
thus set down by the american UrugJiSt
mot being a bo-hydrate like sugar,
it does not affect the digestive process,
and passes out through the urine with
out change. By means of it the food Of
dabetic patients may be sweeteneo
without unfavorable effects"
A curious affection is paradoxica
deafness. DR.. Boucheron, in a note tC
the Paris academy of Sciences, lately
stated that the patient is deaf for speecl
in the silence of retired room, ye
hears the same in the midst Of noise, "a
in q moving carriage or railway train, o
the street. The disorder, which i
grave, progressive and sometimes heredi
tary, is caused by compression of tn
labyrinth of the ear.
Persons who are unable to resist tn
pleasure of reading in railway cars, ant
who, in consequence, endanger thei
cyesight by dependence upon the meage
lamplight furnished by the railroat
companies, can now obtain portabl
electric lights, arranged to hang upon
button of ones coat, and with para
bolic reflector to concentrate the light
The storage battery for this lamp weigh
only pound and half.
The bridges over the Tay aud th
Forth, in Scotland, have attracted muc
attention as engineering works, the first
named viaduct being notable as til
largest bridge in the world; it is onl
one link in the line of northern trave
The second or Forth bridge, from Mort
to South Queenstown, and which
scarcely less important, will have ii
J distinction Of being made of ste
throughout its entire length of moi
, than five thousand feet.
, Artificial silk is the latest discover!
and Judging from the details Of it thi
are at hand, it seems likely that the sill
! worms occupation VII soon be gon
and that he may retire to his cocoon an
lament his lost Importance in silenc
e. The new material is made, we are tolt
/ from kind of colIodion, TO which h,
J been added perchloride of iron and tai
mic acid. The process Of manufactu
is somewhat complicated, but the resu
j seems to be all that can be desired
the way of providing a substance pract
; cally equal to good silk.