, 1881-01-16

10 The isd!.6f o. 1'ty ta.eHJo Tribune.
CHICAGO, IAN. 1t.-somc time ago you pub
l;shed Il communication writer, by Il physician
residing ou Wabash uveaslc IN which he STATED
that the grntugs, Or ,rn1ilut1uy caps, III thu
1nan-toes Of the sewer IN front of his residcnc,
emitted gas that, with tho wind III n certain
quarter entered his home, to tho great disco1u-
fGrt OF himself and family, and placed tkct
health in jeopardy.
Tint this state Of things EXISTS is evident Il
any Ole passing -ru;cl man-holc On IL cold
frosty day w!ic,, tso sewce-g.ls cain be seen rss-
ing III t'o",iis. misty clouds. awa;tn; III oplor-
tHliiiy III enter the t,rst Uptnrl tiuo:.
II is a!su xr!t known that tho s.seauc- pi nos
running to the rt,urs ~ tho bruises il, which tl1ey
are placed ure 1.,lisiilctE i. SERIOUS i..euu-
Scillsi'cc TT residents ~ h'!,acr Aud adjacent
dwellings, anu ttst. are windows III HOUSES thus
,.AI'u$ru wnlch :lrr lcVcr uprteu unless at the
risk nj admitting St.T>r-p2lSn.
The grated s'wcr-cals l1svc been tried aud
havr given 80 relief. Cnan~.n.. the clnse covers
1or The present open ont* has cost The city thou.
sands ol dollars s'.i Il further outlay Of money
III thar direction is its .,~s.
However Remedy nl,:st :or had. or the health
suffer,
The writer, who lived hero forty yelrs. re-
members 4ae low, f'at appearance OF the site o,,
winch the city WAS butft SIX h1t'n1t:s ul the year
the greater PORTION nf that Which is now Tho
bt.slfe5S hc:iFs WIS under water. Then drain
iGc l'r the nSul! rscaus wls iua;ssblc, and the,
subsequent raising of Tho grade the only uvaii
,ls'e 1Arthud. VITA 4 site OF this description tn
bsa:!,l il system of sewerage with the resultant
insu!lclency Ut pitch >, So as to leave no
traps br pockets i'll which tho sewage would
main, generating; ful tunura, seems ululcst be-
yui:i the power Of sC,;1cr.
The remedy ulc! is :,s follows: Build escape
cAiu,ntys the north. south, uut2 skirts Of
the city. over the SeW,:r III the middle sl tho
street il sufficient space can be hau without
tlctrffItcnt to tratci. II nor small ltts m4y he
procured on which the chimney 1illy stand, With
branch running from 1he sever il is intended
to relieve.
Tie size of these escape cs1iuncys may be gov
erned by the size OF the district 1t Is designed to
The hight should lc Il standard, but the area
of the fiuc can be regulated to suit c!rcum-
III illustrate: Taking tho standard of hight US
'el feet witl, Hue oi furr feet i'll diameter il
af coluu1ncr form, which would give an area OF
twelve and II half square feet this taking the
1c1f"ity uf the ascending current NJ s}j feet per
n:,.t:t, moderate ir:sulhF is sufficient to carry
o!f iU.tAs3 cubic feet per minute.
II ulalc IN tho form of i '}li1ttT1ngtc. with Il
s:ll,slre Hue, tho capacity Will he Increased 70
Il sU cnDic 1vct per minute. AZ the bases Ut
lu:rct. uil'i As the gases arise from the sewer
they cisl be colauriicd+ 81 nl;lct uf their lln
pnrites eliminated rs to rcl:der them harmless.
There can be no doubt ;lat with tho cAtea- aA-
sins the street corners. provided with traps
TO prevent The entrance Of air. anu the la5l-plts
sealed vi. 1hc ESCAPES E1ou!l soon exhaust tho
foul .r uf the sewers The Vacuum causeI there
ity would create Il descending cErrent OF nir in
he soil and wastc-pes, iEtei:d OF :an ascend
ing current ns now. ytnj1Arus our dwellings
and removing liability TT danger.
In ease Il fear existed 1i,:,s tue mir from these
ESCAPE, would fall UPON the city during untuy-
OrIble conditions Of t!lc atmosphere, c!usc cov-
crs could le Uilct:tl OVER the It'lth OF the Sew
cr$, that when tho witld c;tlaE tfnn1 tho north
the escapes o! that side of the city could bc
temporarily put out OF use, ant! only those u1l
tho stn1:ll and wes1 sides used. When the wftd
blew from the south west the escapes tht,se
sides eo,1li be Temporarily clnscd. hut thlsllay
1!ut br called for, as the experience Of our cit-
ish,ncnt; and fertiizi1ig fctnries falls far bc-
You'd tho district in which these factories arc
located.
Should hcat be used, closing them will not DC
In erecting them. regard might l1, p2i,ftnthcir
as well US useful which would certainly not be
ost in Il city 50 barren Of monumental shafts.
J. .. MURPHY.