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nOCUMENT No. 13.-Board of As
~ sislant Aldermen, July 18th, 1912.


Ewbanks Patent Tnnes Lead Pipe, for the ronveyanee
OF The croion Water P1e,ensd BY ys NJ Seoss c,..L
The Select Committee, to which referred the annexed
petition,


REPORT:


That in addition to the written statements presented, the
following scientific gentlemen appeared before your Com
mtee and were examined by them upon the matters sub,
Griscorn Your Committee have alss personally inspected
The process of timing the pipes. The Opinions OF these
hey he sne
Tor the conveyance of water dangerous 10 henth in con-
sequence Of the highly poisonous character OF the white
crust OF oXdzed lead which is h2S produced They con.
slider the use of eaden pipes most dangerous when the
water is remarkably pure. Dr. Eet states that eaden
has certain mineral qualities that the process OF
oIdizatlon He expermened with ,e pnrest water while
okidzaton as satisfied him OF the danger OF using eade'
pipes The Croon very pure, and therefore the
use Of l lsaden pipes orght by all means to be avoided
from the eaden pipes by which las been introduced into
this city, and found the Water evidently polluted by The
lead All these gentlemen agree that timing the inside o!
he o m an Ihey as9 thai al
The lead Sbould escape being coveredthat the proximity
dization the lead. urther appears that the process
Timing strengthens the pipe, without diminishing It's elias.
Messrs. Naylor Ewbank inform yonr Committee TINT
they willing furnish the Corporation Of the CITY with
their timed leaden pipes whck thus recommended by
chemists of high reputation, the the ordna-
ry eaden pipes, the OF which they all unhesaiing!y
condemn. They would furnish them at from eight to nine
cents pouGd-in at than nine cents per
pound From all the information obtained, and all the
Election bestowed by your Committee upon subject of no
little Importance, connected with the health and comfort
Of our citizens your Committee have arrived al the follow
ing conclusions That the of the ordinary edden pipes
for the conveyance OF water particularly when pure
the Croor, decidedly dangerous and therefore hit 10
be avoided The danger would be less wer the pipes
small in circumference and in daily and greater where
there extent of surface and they have been permit
ted TO remain unused for any considerable space of lime
The internal coating of tin will be preeciiOn
against the oxidzaon OF the lead The timed leaden
pipes OF the petitioners altogether superior 10 the ord
Your Committee therefore recommend that these timed
eaden pipes b adopted for the conveyance Of the Croton
water into the public buildings in preference to The ordna
ry lepden pipes.


Your Committee eer for the consideration OF the Board
the following resolution:


Resolved, il the Beard OF Aldermen concur, That The
Joint Committee the Croton 9ueduct be Instructed To
make Of Naylor EwbanS patent timed leaden pipes
for the conveyance Of the Croton into the pubic
buildings provided that the cost of the shall be
greater than that OF any other species OF pipe which
equally safe JNO. 3. SCOLES,


VIM. V. BRADY.


CHARLES J. DODGE.
The Timed Leaden Pipes spoken of in the foregoing
Report, are furnished and put up by


p NAYLOR l. CO..
aug 1meoa rs Broad-street and To8 Broadway.