, 1875-02-08
TuE HsfoEE-NtitsANCE.

1okS EdHor or Ihk Chicago 1Fidtfss.
CHICAGO, Feb G.-pcrIcct combustion consists
in thorough chemical UNION Of oil Tho cosatt-
uont clements OF fsto! with the requisite amount
OF oxygen, from the ntmoyphern. Emoke coil
sists of tino PARTICLES Of carbon, from fuel, In
the state Of an iunpalpahle powder. which arc
held in auHpcnsipn. unclaimed, aad CARED
oil by tho volatile products OF combus-
tion and Nnter from tho fuel, which pasecs
of as steam. TheBe dne particles Of caribou do
not unite with their equiracnt Of oxygen, first,
because they aFa not iu o gascous slate; and,
hecoud, becauso tho hydrogen contained in tho
fuel eecares and uutcs with oxygen at = lower
temperature than carbon, aud talrH up ali tho
o1yyon sl'nt ordinarily gcls through the fuol,
much even Of tho hydrogen passing off unco1n-
bned. Homes Tic boneit Of INTRODUCING air above
the fire, which process produces Temperature
high enough to gasify tho escaping carbon
particles, which unite with any excess OF ozrgel
tLerc may be introduced, and then tho quantity
Of smoke iB reduced. II too mnch ait il intro
dnccd, the Casea arc cooled tlowu, aud tho
process is worsc than useless. Tits plan moie
often fails than succcalH, from tho difficulty OF
proper adjustment. 10 nttail perfect combus-
tlon, all Of tho oxygen necessary should pass
through the fuel, TINT j: may be Intimately
mixed with tho Eascs at tho Inuinsns Of their
elimination from tls fuel, heated to tho ptopcr
temperature MLen shtB mixed, and III such man
ner that tho hydrogen (Which liz the liEhlrs: eaB)
ard tic carhoh may be equally mixed with their
equivalents Of oxygen. X simple md practical
plum that would accomplish ths wor,l be readily
introduced without my compulsory law, ami be
perfect euro for tito s,noxo-nuisaucQ. Hhloku
iB not the resultant IT any cucnliea! action 1rp.
erlv apeakiuG, but mechanical mixture of t!Ee
carbon which heat driyep of frum the fuel
with tho escaping hydrogen and steam, before ii
has reached q temporasure sufficiently high to
become gasItied and combined. Gases in CON-
biping do not produce solldB, and rarely finds.
Much more perfect combustion might bo
obtained With our Present Appliances il
moro attention were paid 10 kcopiug tile fire at
through tho coals from boncath, comes in con-
tact With tile bottom and sides Of the Jumps. md
does not directly reach tho top hurfaces, from
par. most Of the line carbon part.clcs nro driven
finer she PARTICLES Of conl tho losa this d,Ni-
Guilty ahoHs itself. Henca tho success
Of tho plan for blowing tho coal in
b powdered atato into the lre by
use, II it reaulsea too much machinery. In
stationary boilers, with chimney draft, tl.tn fro
Is easily carried, and with proper caro- much Of
tile HmoLc can DO Prevoated. even with our prca-
ent appliances. With locomotives the case IL
far different. With them forced blast comncls
= thicker tlro in order to prevent tho draft al
times from lifting the fuol from the CRATES, the
air in principally drawn through tho thinuett
parts, and tho result s that largs pieces OF coal
are carried Oft to nnnoy the travelling public,
burn property, and create expense TOR tLo COM
rsh,cs. 1t il hopefu sign that railroad officials
are using moro active attention to this subject.
It seen,a almost incredible that community
which ls foremost In tho land In atl matters that
pornn to material ADVANCEMENT, should TO hn
renss in the matter OF nbnting the sn,olto-nui-
Hance. I nreak emphaticnily, y,-Hmokc- nuisance.
We breathe s1noke cat smoke, driuk smoke, i'll
fact, everything IL saturated with 1t. 1t In, l
times, can do to provide for daily heads, without
attending to what concerns hfR comfort ntiu con-
venies,ce. We all ray. BY aud by We will do
something for tho public good, hut By aud by
never comcH, 20 wa drift along in tho old way,
which was good enough for our fathers, and so
eau ondu,a it. Notwithstanding our frnntto et-
forts to suppress It BY LAW. you do not point 10
tho modus opetantli by nl,ich tho thing il to DO
accomplished. They will only iacu.nbcr the
statnte-book How can you enforce them with
out stopping tho whee!s al hlniuesH ? 1t seemA,
bometitnes, as though with ali our boasted onter-
prise, No wcro aBicep on this matter, blt when
such public Journals ~ The TRIBUNE ret thetu-
Bolyes about discussing it, 4 feeling OF lIopo in
spiEes us that Bouething tangible will be tho TO-
suit. Lot ns dnyo thorough investigation OF
ing can bo more important for the iDtercBts Of
tho CITY. A pyoncr knowledge OF the ca,lsc will
stimulate aoma ono TO apply tho remedy.
j. n. H1cKs.
GROWING GAS 0EuMD1EI.
To the Editor n Tths Ct.rnoo 1r.pnns:
CHICAGO, Feb. f.-Cbicago gas sharon with the