, 1880-04-11

| ~ tHC LNNUF ~ 4H6 CHtCAlU 1T9uHHts
CHICAGO. April 10-At Il time like the present
| quandury over tho solution Of the paving puz-
xle, un astnte Park Bonrd sit in daily and nightly
| session over the rclnttve merits Of syonite nuG
| soapstono ns a paving MATERIAL it behoores
every citizen who has given thought and re-
| search to these occult problems to offer his re-
! suits for public consideration.
While public sentiment is in violent conflict as
to tho most desirable street surface, u compare
| tive unAni1nity of opinion has been reached to
the effect that no style Of pavement can be OF
| permanent value that is not laid upon solid
Impcrishable foundation. Admitting this prime
necessity Of an enduring bnse, opinion divides
into partially for three very different methods
| la well as materials for such structure.
| Many people still think that pine boards and
| plank aro sufficiently solid and durable for this
purpose. It Is easy to comprehend why pine
| block-heads and cedar sap-heads whose craft
consists OF. trienniai contracts to pave the city
| .,ncw should favor so insecure and pcrishabe u
hase. But Why any disinterested taxpaytng citi-
zen should favor SO transient n material Is past
| all diyinnhon. But some do. It Is cheap to-
| dny;.@ dear Tomorrow. A two or three inch
pnk fG6ra i6n e1rs up
those hnvfng experience that u turred board will
| oltlnst q tarrcd plank when planted in moist
| earth.
4 wooden foundation to any kind Of paving
! material lacks every element Of pcr1nHnency
and suitability. The great and substantial in
porary and faulty cxpcdicnts. We must look
for something more enduring.
The attention uf our citizens is challenged Just
now by II new device tpatc1t sccu red) for q paw
ing bnse named 1.-THE Hagstone foundaHon,
which seems to have won some temporary fnvor,
perhaps permanent. This idea is to lny u close
jointcd, ccmcnted, wuter-tieht floor Of three
inch tagging on bed OF sand, as base, on
which to plant paving. blocks. A small patch
and premature ccrtiflcntion Of its permanent
value have been extracted from some reputable
citizens and published to Influence public action
in its favor: Time and accumulated experience
nlnnc will determine its value and defects rs
universal foundation.
4 serious sanitary objection to SUCH irnpcrvi;,
Gus floor lies in tho fact that it will catch and
hold all the foul scepage that pcrcolates down
from II; tho ST street surface there to fesnent 4,t
faa rot s so0'es ode ap apq is
ttdc requirement. for good street would seem
feee VIE saeen 70
init the precipitation of al seepagc into the dis
injecting earth below. If our. ,patentco would
upset his specifications ho would approximate q
The cost Of the '.hng foundation" with %
cents pr superficial yrd Tor stone plus han
Is he less than Sl.25 per yard of street surface.
Then comes the perhaps equal or larger cost of
tues, vices, or cost Of this device. its quietus is
found in the statement, if true, that the require
mc1lts Of IL tvc-mile street will exhaust all OF
tho line OF the canal. This statement is made
on tho very best OF authority.
The thtri-the oldest, and time-certtied ma
tcriul and method for street and rOud f0undn-
tion-Is that Of broken stone. This Is nt once the
cheapest most solid, scryiceQble, and enduring
foundation that hns rs yot been devised by man.
1t hns the ccrtftication Of centuries of exposure
and the unanimous testimony Of all scientific
inches Of such approved foundation viii cost but
y cents per yard, will endure to the limit Of
time and ought to be satisfactory to all, snyc
only pntcttces OF Inferior and ephcmerul de-
vices. Upon such foundation n1ay be securely
placed your wearing surface Of perishable wood,
smooth asphalt, Or eternally- enduring porphyry,
syenite, or grant, as the parties in Interest may
N. RI havo no limestone to quarry or sell,
nor dull tools to sharpen. PIP.
Drainage and Purc Water Once More.
To the Editor Of The Chicago 4stbuns-
New YoRK, April BY private correspond
encc discover that my letters to THE TRIBUNE
on the subject of drainage, so fur as they apply
to health, are mfsnpprehcnded. Now, do not
say, nor do I admit, TINT the 'odors arising
from the Chicago River. however pungent and
they may be, nre materially detri-
mental to tho public health It is true there
may be individual instances where, to persons Of
impaired health and strength, those o<lors may |
be Injurious. Such persons, however, md In |
fact healthy people, might nlso be injured by |
tho pure. cool, and health.,giving lake winds |
which often sweep over Chicago in summer, II |
But the tangcr to public health is to be apprc~ |
hended from the contamination Of the wnter-
IL the river % Tat "sS1 se~aes e
Gfs af and arsaa saa that 1 sev reach ase,.o tie
crib Is peryaded by 1t; unless tho outflow Is ar
rcste and i cnF only ne arrested by inducing
fNH river. This would NHfnrfanlsf7 fn f{nII