Kanawha Valley star. [volume] (Charleston, Va. [W. Va.]) 1856-1861, 1858-05-04
7Ir .tle. "Kans wha Valley stst II
\ cfnhsl Coal o. d. Is
!. 1INo. >. ]

] r E.E g. . '.
:Tha gasbs. formed are ia the whole, al
ways lfel same, they l.vary=only il their
proportion. Al the beginning Of the dis
tilIati9l eaEbonici Acid escapes, diminish
ing sN5a ut D higher temperature, at
uhichRarA6ai!; oxyd and olefant gas pre-
dominltd.lI Al the heat4incfeases Hydro.
gen afl Observation-Disclosures Hydrogen take.
the pAes fpf The Bieafburet, at last III 4
high Md heat, Hydrogen accompanied
with arshgas and carbonic oxyd APP
pears AIpart ofIthe ydlatilized condens-
able b9tie$l is mixed with the gases thist
KaixtulS pII gases and yapors serves, iii
is rich badEghE in Carbon to burn with 4
brightlidHl, as Illuminating gas. u
The Temperature, required for. dec9m
positiob yhties according to the nature
Of the AIeisl substances, peat and wood
ErequiraEa epmparatiyely low temperature
to be cAaFSsd With the formation Of car
bonic Acid. cafbonie oxtd and .ashtlle d.
efiaat gAsI;IItheI gases fokmed At ashigher
temperature doE1et find any moreyaporss
capableEIof Igiying light This explains
the :oldI dyberiehee, that Ordinary wood
and Ped gab islnot fit for Illumination
Only hblsIItheEd discovery has been made
fhoH. toItFdst Wood and pearin orderto
produced illuminating gas equal to the
best ElaEIeNdF coal. I
'FRONT.' those facts we learn that differ.
lent metBpdsEhaYe to be applied if We want
to prepase ghsedus Or fuid and solid illn-
minatinS bodies.
The employment Of mineral substances
for illuniination is not entirely, new, and
where nAuIs herself ha4prepsred them.
they haie been used alrealy since d long
time. liquid and gaseous carburettsd
Hydrogdhs Nsptha, Rocioill make
their apBearance on. the surface of the
earth at several places [ Baku, near tile
Caspian Sea Amiano, Fredonia, N. .Y,,
on the Kanawlla. Va, some localities iii
Kentuck N, etc. here nature5distiis those,
bodies frdn snbiarranean beds Of coal. --
Substances similar to PafaGne have beer.
found SINCE d great many years, tie Or
okerit Borystoa GalIi4ia), Fichtelit,
Hatcbetia IRE final products Of deeeayiug.
bodies and those Substances are partially.
fused for the nanuEacture Of candles.-
The artificial production.df similar com /
positions has gradually made its apear-
ance, since the products of Obstructive
distillation have gained more attention.
Before the memorable researches Of
Reichenbach the knowledgesof the na
ture Of those bodies was very limited, II
was known that the gases ppearin d nr
ling tie process Of decomposition were.
intlammable, that the aqueous part. &c tie
ldistillate contained flee acids, if the treat.
60 substances contained oxygen, that Il
contained, il this was not The case, AM
| intrpllia, The aatiseptic properties of tar
were known, lis thick Consistency was
attributed te empyrcumatic resins, its
odour to emf yrcumalic oils-a Faraday in
the year 1925 recognized the nature of
the Volatile Hydrogens, separating from
compressed illuminating Gas, and the
same author described the effect those
bodies have On the illuminating power Of
gases, wherein they are contaiaed in The
shape Of yapdufs.
II Reiehenbaeh discovered Ia The wear
1880, in the tar Of beach wood, Great
number Of new combinations. which he
isolated, amongst those were Paraffin
Eupione Kreosot, Napthaline etc. Them,
yestigations Of Kidd. Runge, Laurent and
the later ones Of Hoffman and Mansfield
have shed 8 great deal Of light on he
composition of coal-tar. PelIetier and
Walter, have examined the products Of
the distillation Of Resins, Unyerdorben
and Anderson, those Of animal matters.
The result Of these Investigations NAV
be expressed p general way thus, that
the tar contains. besides resinous and
easily oxidyzed matter, the nature of|
sh'eh i sst unknown; always solid and