The Fairfield herald. [volume] (Winnsboro, S.C.) 1849-1876, 1867-11-27
Scientific and Useful.

be employed for the manufacture of gas
OF high Illuminating power by burn.
ing carbonate Of soda in :, close furnace.
In the first step Of the proceeding tho
water is driven from The material the
crcosoto and soda compound is 4cu
decomposcd, a porous coke with which
The soda is mixed being left. Onc re-
suit OF tho decomposition is the informa-
uon OF quantity OF carbonic acid, The
greater part Of which mitcs with the
cans'lc soda employed to produce he
carbonate. The carbonate Of soda IS
easily extracted from The coke, and may
DO used again aud again.
f"rIo,. OF CAED0N1c AclD.- While
wol men werc engaged N re opening
and repairing The coal mincs Of Bow
Bn,vcnr, al Jcmappc, they camc upon
gallery communicating with llo lower
ladders, where they discovered seven
bodies Of 'hc unfortunate wo, ,lmcn VINO
three months before were imprisoned
while makIAg their way 10 The surface.
The bodies were completely mumihel,
tue shriyc!e,i lcsI, adhcling 10 Ihc bones,
FMS Phenomenon is ATTRIBUTED 10 the
abundant cxilalalions Of calbonic acid
gas in The gallery.
TIS FoIL..-Ncarly al tin foil now
used IS adu'cEatcd with lead. d.. J.
Il. l'a'dock found Ivy chemical analysis
that common lin foil contained S9.02
per ccai. Of lead; embossed foil, 1851
per ccn. lca !uil, SO &c per cent aud
lie so-ca''rd pure in lor| 32.62 per
cent Of lead. The adu!lpracJ article IL
made by placing an ingo' Of lead be-
tween two ingots Of tin, and rolliug them
mo sheets wiicl, hasea coating Of tin
on both sides.
NEw S.L'cuM CoNrouxp.-F Fr.cdc
and L;,lenbnrg have prepared body
containing enc atom Of hydrogen, one
OF silicon, and three atoms Of c,,oInc.
II 'oils between 81 degrees and 81
degrees S G., the vapor Of which. mixed
with ai.', cxplodcs on contact wnh m
isni'cd Dolly. Thc gas is no; sponta-
nconsly inilAmmablc AT ordinary tempe
ra.urc.
Pure Ac@r'o Ac1D.--Ficicr, orBcr-
In, uses baryia, IN preference to soda
or lime, in The manufacture of pure
Hccic acid from crudo wood vinegar
The accia,c Of Garyta wi,hslands tho
roasting necessary 10 get rid Of The
cmpyrcnma'ic matters bcilcr than The
acctatcs cf fmc or soda, in consequence
OF which there is less loss OF acclic
acid.
SAFETY CAN FOR 1TYDao.CAuBoy
Ous.-Twn American inventors
Me:srs. Perkins & IIonsc-!avc na.
tented can that will protect hcnzinc
or any other hvdro.carbon fluid from
danger Of explosion. The principle on
which it opcraics is similar 10 that cmbo-
died by Sir. Humphrey Dayy in his
safe ty.lamp.
INGENIOUS AND BnAUTlFUL EyraRI-
MENT.-'lacc or sheet Of white pa
per, in The sunshine, a circular piece Of
blue six about four inches in diameter
cover the centre Of this with niece Of
yellow silk three inches in diameter:
then ono Of pink, two inches across ::
a groom ono, one inch acioss, and one
o. indigo, half az inch in diameter, and
III thc ccntcr Of this make black dot
with a pen. Then look steadily for a
minute At the central spot, closing yonr
hands about an inch distant before them
and You will sec the most beautiful cir
Gle Of colo"s that the imagination can
conceive, which are moi tic colors OF tho
silk alone, hut will be pcrpctualIy chang.
ING IN the most pleasing manner.
There are now taken out Of the hills
of Lebanon Co., Penn, 1900 tuns Of
iron orc per month. Two ,uns Of this
ore make one tun Of iron.
REcENT SCIENTIFIC DISCOVERIES.
The idea OF using ainHioiiacal gas a,
motor in place Of steam. has been en-
tertained by many inventors, but has
never, we believe, been successfully car
red ont. AZ fow years ago, NM. Tel.
lcr and Flandrin proposed to propcI ON.
nibpscs through the streets Of Paris by
its means. phcy started, proposed to
start, with vessel of tIro i.quciieL gas.
and supposed that whc.s lals was oDen.
G! by turning a tap, .hc gas would bo
discharged into a cylinder, with suflis
cient lolce 10 drive forwards r;s;on
ard water being then admitted 10 the
cylinder, the gas would be condensed,
a vacuum formed, and the piston driven
back by atmospheric pressure. Our
readers will thus see that the princpic
OF an ammonia engine is pretty much
the same as that Of Newcomers steam.
engine. The plan, if at all feasible, IS
obviously better suited for stationary
than locomotive machinery, and The
most reasonable application Of ammonia
sheen made Ivy NJ. Fremont, who
proposes to work 4 pump Jy It's agency.
lis engine differs somewhat from li,at
OF NJ. Teller, inasmuch as he drives tho
piston in both directions with the GAS.
a detailed description and It drawing of
the machine is given III Diny1r's Poy
tccAatc JoWnai but It is scarcely worth
serious consideration, for in all proba
blily it on = exists on paper. i, NAV