Rock Island daily Argus. (Rock Island, Ill.) 1886-1893, 1888-01-07

| Health Boards.
1t is popularity supposed that water b
| freezing becomes purified, and that the in
furious elements that there may be in it ar
eliminated by the action of the frost. For
long time it was considered that oven thougi
ice was frozen over water known to he filthy
the ice was nevertheless pure, and the ap
parent sanction of science was given to thi
| theory. Recent Investigations by learnet
| microscopists have, however, thrown new
| light upon this question, and while it is still
admitted that large percentage of the in
| furious elements of impure water become
lost when it is frozen it has also been shown
that enough Impurities remain in the frozen
water TO make 1t possible to spread to au
| alarming extent any disease the infectious
elements of which were contained in til.
water in its liquid state,
One of the persons who has made an ex.
haustive study of this subject is Dr. 7. Mitch.
ell Prndden, the director of the laboratory
of the College of Physicians and Surgeons in
this city. In the early part of the year he
contributed a long article to The Medical
Record, in which he showed the result OF
very careful analyses of different samples OF
ice taken from all the sources of supply
around New York He came to the conclu-
sion that typhoid fever and possibly cholera
might easily be spread among the consumers
of tho ice whist; is formed on the Hudson.
"This river,n he says, "is at the best rather
shallow, and large quantities of detritus an
nually brought down the stream cause con-
stant and considerable change in the bottom
The islands in the river from Coxsackie to
Albany are gradually formed from the sedi-
mentary deposit. AT the upper part of this
section, Troy, city Of over $4,000 inhabit-
ants, empties daily s,OOO,OOO gallons of sew
age into the river, which is already charged
with contributions from Cohoes and Lansing
burg, to say nothing of the impurities
brought by the Mohawk from the west. A
few miles below Troy Albany, with over
10000 inhabitants, has also an efficient sew
age system, which it pours directly into the
river.n
Taking the results of all his analyses of ice
from the various sources, he finds that the
average number of living bacteria contained
IN one cubic centimeter of the melted ice is
2,033, or, to put it in more common terms,
pint of melted ice would harbor about 500, 600
living bacteria of various kinds. He who,
impressed with the Importance of a pure
drinking water, should perfectly filter half
glass of average winter Croton water and
then add to it an equal quantity of average
ice, would have the satisfaction of replacing
times os many fron, ,,n,,a ,,,Sorta;. 90
ouaotionabIa so,,,nas 'oi WAL ''''u
Ona raason n. pr,,l,o,, .o,,, -. :. -
naver bofora l,o,,,, H. ,,is,'.s,. ~ -
ice MIGHT contain tho o,a,,,,a 70 ,;s,as vrS ,.aS
that tba only n,atho, ~ ,.aeo,,,I, ~, h.,
cI,ar,;noI o,o,,,ina+;a, T1,,ac. -, w. -
oo,,t Il. .fa,e,,tioIi,, 1,.,,.,i.,a 49, ..',r
haotara IA 1, ~ lcr,,n,, - ;,,so,,
thoir ,rasa,,f Ths IT. "
ho oo.,oI1,, oo,,,tI 80 e e. -'-y 80
ac+ionS IN .ba a,;s,,,i Ine,sitoI,,
,ninad rba va,., ,,,a,tnI T., - 49, %
Formation 10 ohtoinad 10 ai,,,, ti t;aIan, S.s ~
aral,rS,s 80 N''o- WIG ''"'
In tha ox,,o,.;,,,o.,+s ,,,o.,,, h,, n, nh,
sor,,n,as 90 r. ,,,;o,, ~a+ai,3 ta"HI uuen
imnpritios snoh ns a,.asa ana go, r,uen. sioss
m 90 sas ,,,iaotad as ,,t sa;,.,, :"
II hos No., Oh a,,,,, +tat =.
anorrno,Is n',,,ra,s r,;tta',t e't ~ ~
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nr pr,,aa,, aael hi,,Ia:;,,oi s,'oi,' ,so
sarr,los ola,, So, nInrI7a % - -. "a - -
u,dso,, -, - r-..io,, 10 o, uIo one
parl, 60 ~ ,,;a,,,i,r os tn I'M " ~
l,o,,a,l so,,,r,Io, fs-1e ~ -, o,li- ~
.sa,,1,. -, -. % ~. III p Aeo
ttaso h. 81 II ni VI
'1;tFo,a,,. t1;,,ts e.. 20 VI p''eol ni olm Vi
fo,,,,,l ,o,,+a;,,o. -. 4, uAois
ho ctar; f,,,,d T., s.o s Vi
H. 60, ~, p.'iSl,'' ioo oe'Neii rom ON
,,,.oo,'atN1, ieo "es ai'o M
: no ,7s,,a,a,.+ ;,,, lei e.. .'i,an
s.',,3 a. 80 eie'e VI SsiisiiS, Du' he
i,,a - l1 90 W ioo aiu si'o"
,s,,;nt tha 1iy wen one water siIolh
ahio nnn,bar - 20 haatnn; neu c0ii''niiS CONSIDER
Hn1s,',, -. 10
,,,,,nhar ~ haa+n;,I .l . iai
10 Ion fror, tba tba. ,.,at,,.s - NJ, VI
mi ,,,hiIo 80, - 49, t-et.:s n,
non,;Ia,a5 ha,rs,,oea - - - 10y 70
lo,,bta,I,, T., i,,,;,,,, Tha 80 g.. ~
80, a,.a -, ,,.... La., s.a, ~ seo. ~
1isaasa .,,,,l'i -, $500 ai iia "a
,,,;tI, hi ~ '1i.u
WV uu PoiSos, ,,, aie t1,lilos1 constantly
~ s.,..,,..,1, -, .-ir 's''u
l+,,a,y =, a. .nI uppoi
49, u,,,so, -. =, e
;na, r,,,.,,1sa, r. - IL .o, ~ u ,a IN
~ 'nt,o+i,a,. ~ t,:5a s'' iioo AAio"
.atoi1 re- ;,,Jae.si.ni,, ~ ~. ~ nay
o'ra1t 1,,,iad -, -, noS ~ 10 as one
80, y. - onuy 10 oeeh AeP'
~ " -aas ~. ~ is 70 my
-. 80. INC 1iu VI nea.n,
p,,,I anot,.41 80. .ta ~ L.t snoi nays
"a ~, -, 20 i.,2,.in. @ ". leln
.ha,, y H.. go ~ Ia ie. ~ 10. ieSs ssiics
lta yile VI
: ~ 80 H. il'ie "nieh'
,;.',at, ,t =. - :'':I ~ ,'ppiy aio ~
'urieis oi 1ne ice, IN tne case OF inc HUDSON
w. II wouit pe iieeess''iy 70 estaniish py
ioso enosousn sclen.inc eA'lnila,ion 1ne
i.41 I'm ~ a. u seMaee
omas, ,l.al ~ az a., ~n.cn ~ Iiine oe sieiy as
ous,o ,ne ii'iu ireeu ftsl Iloin
iole remove any chance OF danger by
al nnIu sor rno ond,inhin ,rn III paa iGe ~ - h u
cIassificatio,i is nracticsble % and Tins % NOT
interfere with the Interests M Of the the