The New York herald. [volume] (New York [N.Y.]) 1840-1920, 1874-06-11

removed nom the base Of the embangment Sss
thirty ieet on each side Of the centre wall - re-
possible * % sscsrssin With cersanss the nmssss
cause Of the faiiure; bus from the evidence OBJ
SION s than that the "e water iound i' ls 0' way
Under ;nnn IN, The wal, At . POINT about 100 iess
central wall, which, being then unsupported.
yislde1 20 tne pressure on the upper sade. and
larged by the washing away Of the embankment
and the fall OF orher parts OF the wall IL may be
aster, why did it not happen before, when the
reservoir We: a. higher level The answer, We
working out Of the gravel under and near tie wall.
and loose places or cavities formed, wiich, when
they bad obtained certain development would
suddenly lead TO the failure. p No engineer
or person calng himself such can be held respon-
siDle for either it, design or execution"
wreck Of the dam, and alter explaining It and
giving substantially the same reasons Tor ITS giving
ne DAM $1,000 ws paId
on i. This, with the $1,000.000 OF property de-
stroyed ana the large number OF lives lost mad
made the employment Of unscientlfc men rather
me Committee on the Drawbrdge asked leave
to report on aiuture day. The request granted.
The Secretary read the memorial which the Com
mlttee on Tests OF Iron and Steel had drawn up
ton 81 statistics and data, nom every available
source, Tor tle thorough understanding OF the
sea o. Gn
sutute, was added to tins committee This me.
mortal was adopted ana the committee continued
General j. G. Barnard. Of New York, then read
paper on the "Reslstance OF Beams to Flexure.n
it was is dificut 70 report as would be a cispter
from the ..lntegral Calculusn II was mainly q dis
neutral Zone ana ie centre Of sI sravy the CO.
efficient Of elasticity IN large forged iron beams
vary from 500 600 TO as the various points
Professor Wood. OF the stevens Institute.
stated that formula OF Barlow would not apply
IN every case. Tne neutral axis varies mate rally
when the oeam approaches the point Of rupture:
A paper prepared BY @. smaller Smith, OF st.
Turntables" was read by the secretary.
. This was followed oy paper on "kolng Fric-
ton. read by Charles Mcdonald, civil engineer,
"A paper on .'rhe. Method Of Putting in the
Foundations OF tine Anchorage OF the East River
engineer, OF New York.
Inc next paper was read on "'rhe Connagration
Martin Coryell, civil engineer, OF Wllkesbarre,
Pa He stated that the efforts subdue the flames
had that the mine might finally be rendered air
tight, and the fire put out.
MI Mr.; steel 10 commenting on me paper said that
been burning Tor fifteen years. Mr.. Cooke also
said that there were several wonderful cases OF
burning mines In the Pennsy lvanla coal region.
A very interesting paper on .'Tne Teredo."
by @. ". r. Bsyley, civll engineer. OF New Orleans
related to the small worm which attacks the huls
OF vessels and piles In narD0rs. The author re-,
commends the use Of copper or felt sheeting on
piles. and coal tar on the huils OF vessels. Adj
journed.
AN EVENING SESSION
was held, large number OF delegates attending.
Papers were read by Thomas G. Clarke, c. E., or
Philadelphia, on 1.-THE Education or Civil Engi-
NO., zine Efectlon OF the Illinois and st. Louis
Bridge;" by James B. Eads. 9. f., OF st. Louis,
Van Buren,, Jr.. G. f.. Of New York, ON 1.-THE I'm
provement Of the Water Front Of New York" me
ment Or Docks. comprised SUBSTANTIALLY ali the
details which havGappeared in two recent articles
In the HERALD, the information for which was OBJ
tanned from Mr.. Van Buren,.
The members OF the convention will visit the
Stevens Institute and the stevens battery, az
HObOken, tomorrow after which they will 60 up
the East River to He'll Gate, and. landing at Har-
lem, will inspect the Fourth avenue improvements.
On Friday the members Will make tour TO the
WYomlnR Coal BASIN .-A -.l III