Dodgeville chronicle. [volume] (Dodgeville, Wis.) 1862-current, 1867-11-08
Art and science.


of equal parts good red brass, anthony,
tin, bismuth and lead
Iodine of silver possesses the singu-
lar property of contracting by heat and
expanding by its withdrawal.
TO give the public an idea of the ex-
tent of the telegraph business of Chicago,
it is but necessary to mention the fact that
forty six telegraph wires now centre in
that city, coming in from different direc-
tions.
If you have screw rusted into wood,
or nut or a bolt that will not readily
turn, pour on it little kerosene and let it
remain. In a little while the oil will PEN
citrate the interstices so that the screw can
be easily started. i'i' N'''4. ''e'''' 'o'.
The deepest guano deposit is seventy
feet. Humboldt says an inch in depth
would demand lapse Of 800 or 900 years.
This would seem to prove long success
sion of ages in time past, during which
birds must have existed. lsi9 deGaI
M. o. Poulet read at a late meeting of
the French Academy a paper, in which he
stated that during an epidemic OF whoop-
ing-cough which prevailed in his neighbor-
hood, he found in the air expired by a
number of children suffering by it, vast
number of Hinfusoria, identical in every
case, and which had the property of COM
municating the disease to persons inhaling
them. t6Il}
An ingenious continuance for raising
water is on exhibition in New York, and,
it is stated, supplies the power for a flour
mill in Virginia. The process is to intro
duce steam-the exhaust of O non- condens-
ing engine-into reservoir connected by
pipe with supply of water below, and
then, by aSjet of water, to condense the
steam, creating vacuum which is instantly
filed with water to be discharged into a
lume or reservoir, from which 1t is carried
toithe Water-wheel. .A3i"hiE
The experiments in New York with
the electric light, as substitute for gas IN
lighting the city, continue. The last ex-
pertinent was made on the Battery, and
/ the electric battery of flfty-six magnets was
driven by small steam engine. From
fhis) wires were conducted to the upper
lipart iOi the tower on the Battery, where
they, were connected with carbon crayons.
The light made was very brilliant, illumi-
mating the city md harb6r for q great dis
lance. These experiments are to be con
| timed ,a.ftle ,eiuo ii .agnI no .q9toy
The latest invention is a voting
machine. IA patent for IL has been issued.
| Its Obiect1is to facilitatesthe transaction of
legislative, business. - BY an arrangement
Of wires similar to that Of Che hotel -annun-
| ciator, connecting the desks Of the mem
| hers oil adeliberatiye body with the voting
apparatus, members are, enabled to vote
all at once, and, after moments time al.
lowed for a change of vote by any member
who may desire it. hesresnlt--that isl the
individual vote of each member, together
with the aggregates, respectively of the
/ yeas and f,ays2ffsi plainly shown on the
dial plates. adSimultaneously with the sum
married. result, the name, of each member
voting is printed for the use. Of. the repor-
tiers Of the press s s9Eie 2fd IN Da"S
|dsaaOpeii Of the most renlarkablef end
pleasing illustratiensDofs ths, properdesTo of
SOUND is the. extinguishment Of O., lighted
candle BY pure noise, Prof Tyndafl, in
|eneTof HIS oexpefimentsp places a lighted
candle onia table at the end of u cube, sup
ported ON bracket holders, resting on the
table. The end Of the tube near the can
!. die is small and pointed. u Tbe other, is
large and open. loByi clapping two books
together at the large end, Prof. ! yndall ex-
tingdishes the candle at the other end.
"Pooh !" says an over-intelligent reader,
/" that is nothing; it is simply blowing out
a candle through a pipe no such thing,
super sagacious critic, as Prof. Tyndall
proceeds to prove. He burns a piece of
brown paper an the tube, filling it with
smoke, Nov, if the candle be put out by
blow, smoke will issue from the pointed
end of the tube. oiAgain Prof Tyndall
claps the books + A gain the candle goes
out; but no smoke comes out OF the POINT
ed end Of the tube, Whatever has put out
the candle has passed through the air and
smoke in, the tubeso The light Is extln-
Candle is Put out by sodnd@ noise. ~
bioy prof A. A. could, from statistics de-
rived fro1nEthe register Of two end half
millions OF men in the u, 8. Army, has
brought out the fact that men attain their
i,1axifnuffl stature much later than is gene
rally supposed. This takes place COM
monty at 20 or 30 years Of age; but, there
are frequent, instances Of growth until 35,
Iiot very noticable,-a Yearly gain Of a
tenthef an inch perhaps, still growth.
After 80 the stature subsidies in similar
proportions, partly perhaps from the con-
dsnsatiops of the cartilages, partly because
of the change in theIangleiof the hip bone.
The age for maximum stature comees ear
Hest to the tallegt men, as IT 1t were tne
necessity Of unusual development. Forclgn-
ers were shorter than men OF native piIth
The heights of men seemed TO depehu oai
the Mace of enlistment. A Massachusetts
man enlistjup in Iowa was an inch taller
than IL he had staid at home AS we go
West men GROW taller. One man measuT-
( "a M rnore than 6 feet 10 inches. Out OF one
r,nill;orSItbere were five hundred thousand
1vho measured moro than feet 4 inches