The Forest Republican. [volume] (Tionesta, Pa.) 1869-1952, 1889-05-01
SCIENTIFIC AND INDUSTRIAL.
Mr.. Cavett of Pittsburg, has invented
A powerful submarine ram,

Mr.. Cavett, of Pittsburg, has invented
powerful submarine ram,
The temperature of Siberia was once
much milder than at present.
There is said to be sulphur enough in
Lower California to supply the world.
The American Meteorological Journal
offers prizes for the best studies Of tor
nadoes.
Telecon is suggested as an appropriate
aud convenient name for telephone
conversation.
In the new system of lighting cars by
electricity the train may be broken up
at will without elfccting the light.
College professors say that there is no
science in which it is so hard to keep
themselves informed as electricity.
The recent invention of light motor
encourages the belief that it may event
ually be used for aerial navigation.
Electricity moves 2SS, 600 miles per
second; light moves 1872, 600 miles per
second; q rifles ball moves 14G0 feet per
second.
The numerous attempts 10 run electric
tram cars by direct gearing, that is with
out countershaft have as a rule been
unsuccessful.
An entertaining and instructive feat
ure of the recent meeting of the Chicago
Dental Society was q display of electric
dental apparatus.
The rapid spreading of the technics of
electric lightning is said to be devoid of
a natural basis as long as there is no
theoretical and practical soundness in
the construction of dynamos.
Pasteur, during a recent month, treated
142 persons for rabies at his institution
in Paris, of which number only two
died. Among the patients was one who
had been bitten by mad OK.
France intends granting to the Sub
marine Company a further prolongation
of the term for working the channel ca
bles until the present difficulties with
the English Government are removed.
In late French experiments pressure
of several hundred tons TO the sluare
inch reduced discs of cork to one.flfth
of their original thickness, but the origi-
nal bulk was regained in ten minutes
after the removal of the pressure.
NJ. Fouque, French metallurgist.
claims to have rediscovered the art of
making the famous Pompeii blue. His
process is based on mixture of silieate.
copper aad chalk, and be says that he
can produce any quantity of it at mod.
era cost.
A very singular new species of marsu-
pial mammal from New Guinea has been
described by Milne Edwards under the
name of Dactylopsila palpator. 1t is
remarkable for the enormous length of
the fourth tinger-more than an inch
longer than the two ad joining digits.
A correspondent recommends tan
smoke for a diphtheria cure His treat
ment is to put few drops of tar, like
that used in shipyards, on a warm stove
lid and to require the patient TO inhal(
and swallow the smoke ten times a day
for five minutes each time. He has beer
invariably successful in his experiments
G. d. Dempsey, in the Archnee,. Lon.
don, says: "One important rule has tc
be observed in order to produce good
brickwork, viz, that the mortar should
be as thick as it may be, or as nearly ap.
proachiug the solid form as is consistent
with the degree of plastlcty essential
for its proper distribution aud penetra-
tion into the joints, while the bricks
should be thoroughly wetted on the sur.
face. BY these means the adhesion be
tween them is rendered the more perfect
and the subsequent amount of shrinking
and settlement is reduced to mini
mum