The Middlebury register. [volume] (Middlebury, Vt.) 1850-1882, 1879-10-03

Inc ncWly-lnVcntcd pOlyscOpc is
galvanic apparatus for rilnfninating cav
tiles of the body. A Paiisian defltist
finds it especially valuable in dentistry,
as when the mouth is lighted up by this
means, the slightest defects In the teeth
are at once revealed. 70 ii 70
A Swiss locksmith has succeeded jh
perfccting target which, by means of
electricity, is made 10 show instantas,
neously upon another target, nj the Cir
ing station, the exact spot where n bul-
let strikes. The necessity OF employ
ing a marker is thus obviated.
Canal projects continue to increase.
One Of the latest important ones is a '
plan TO connect Bordeaux with the Med 'f
iterrancan by canal across France.
A German firm is now making straps
and belts for driving machinery from
steel wire. The wire is woven info, y
web of any desired length Or Width.
The discovery of new explosive,
which can be manufactured and USED
without risk of accident, is annonrcetl9h
by Prof. Reynolds, of Dublin. II is asJ
mixture of seventy-fivc parts Of chlo-yg
rate of potassium, with twenty-five
parts of " sulpliurca," body discover
ed by Prof. Reynolds, which can be
cheaply obtained from waste product
of gas manufacture. These two non-
explosive substances can be Kept apart
without danger, and can be mixed as
| required TO form blasting agent i
The Russians, ever studying how 10
excel in war, have decided from recent
artillery experiments, that in the pres
ent state of science the shrapnel is the
only effective projectile for use against
troops sheltered behind redoubt. The
shrapnel is shell filled with small balls,
and arranged to burst several YARDS
short of the object at which il is directed.
A new French fire-damp detectorcon-
sists of common lamp surmounted by
a small camera obscura, provided with
a slit. As ordinarily burning no flame
is visible in the lamp, but the presence
OF any hydrogen compound in the sur
rounding atmosphere causes blue
flame to appear at the slit. The larger
the flame the greater the amount of fire.
damp present, and consequently the.
greater the danger of an explosion in
the mine.
a series of United States weather
maps, diagrams, and reports illus
trating the operation of our signal SER
vice systcm-is on exhibition at the
South kensington museum. ii 800
A French journal gives the prices Of
menageric animals, in which. il seems.
quite II trade exists. Lions and tigers
have all average price of 1000 francs;
a spotted panther, $50 francs a black.
panther 400 francs; leopard, 5000
francs; spotted tiger, $500 fraiIcy.
The jaguar is worth from 7j0 TO 1920
francs; the hyena, from 800 TO 100
francs the ichneumon, 62J francs the
wolf, l25 to 2j0 francs. Bears vary
from 200 to G2j francs, (thc latter being
the price of the white bear). The price
of rhinoceros is from 10000 to 10000
/ francs. a small African elephant NAV
be had for | 600 francs, while the In.
dian elephant costs 4 $50 to 900 francs.
For pair of Kangaroos the price is
2j0 to 1000 francs. The prices of apes
show great diversity, from % frames
for small animals to . 500 for the CHIN
panzce or orang- -outang. Fancy prices
are often paid by collectors for animals
possessing rare and extraordinary fea-
lures. Some lions are worth 10000
francs.
T Efforts have long been made to secure
some means of recording the notes of
melodies played on piano, organ or
othcr Key instrument, bnt all devices
hitherto produced have failed to meet
, the need, on account OF compcXitv.
imperfcctness or expense. A new in
strument, Bigliani's melodiograph,
seems admirably adapted TO meet all
, requirements, being very simple, prac-
teal and cheap. a double fiat spring
placed under each key is connected
with an electric battery and with a re-
cording apparatus, which consists of Il
comb provided with insulated teeth
resting on copper cylinder. a str;p
, Of ruled and chemcally-prepared paper
i Is drawn over this cylinder by clock
work, and receives the marks of the.
teeth OF the comb. This clock work
can be regulated SO as to cause the pa
' per to move in conformity with ihc
time kept by person playing the in
strument. Every depression of a l1e-.'
closes the circuit, and the electricity.
passing through one of the teeth of the
| comb, makes mark corresponding 10
the key depressed.
s An English writer cites several H.
stances of the discovery of germs Of
the tape-worm in hens eggs. Thorough
: cooking destroys the germs. .-.-..
How very faint is the conception OF.
the earth's mass conveyed bv the state-l
! ment that it weighs G,000, 900, 900 ,OO0.-
900, ,O00, 900 tons! How little such an
array of figures seems TO express TIL u
1t appears that the aniine dyes. now
in such extensive use, may render cloth
u ing poisonous. From various sections
i' have been reported cases of children,
having their legs poisoned from wear
ing colored stockings. A recent case
is reported from Hartford, the victim
being young lady of that city, who
has had her face seriously poisoned
al from wearing a new blue veil, which,
10 on chemical examination, was found to
n contain large quantity of aniline dye.
Is a correspondent of the London
'o AthenTum mentions new scientific
discovery by celebrated lion-kilicr.
C, which furnishes "by means of two
of natural substances, ineXhausuble ia ma
@, ture, the means OF lighting and main
r.. tanning fire without wood or coal: n
ty fire instantaneously lighted and cNtin-
&C. guishcd, fire causing no dust, smoke
lis or trouble; fire costing one-tenlh ot
ordinary fuel; and, what is more won.
- derful still, a fire, the portion of whici
Oi answering to our fuel, is cverlaslins.' -
-, The matter appears very like hoax
na IA. although the writer OF the article, who
nc vouches for the accuracy of the state
Ms ments, is lady said to be wcl-knowi
Nv in England.
ed In various sections of Our county
flint aud obsi,lian arrow -hcads. E1li, q
~ and other sharp implements have Offer
ne been found, and are regarded as imnert
o9 ant aud interesting reiics OF pfehistbri
no races. Ii has long been Supposed tia
ih IN these instruments We're clilned inf