New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1867-05-04
THE MARINE LIFE-SAHING COMMISSION.

rur r-er or CHEMICAL MATERIALS IN HE fNllN-
o,usuuENT OF FIREs-IECTURE BY PROF DobE-
NUs-BOnERs AND BOILER EXPLOSIONS
The Commission appointed Dy congress 10 repoft
on various inventions for saving me Oh oO"lu Vi VESSELS
VISITED the Chemical Laboratory OF Prof DNremus at the
.coueoe OF the City OF New-York" on Thursday after
noon. 70 witness some experiments In relation to
oxtinouish,ng fires lighted candelabra lowered
with Increased brilancy, while flame in nitrogen gas
was extnguished tall glass divided by pieces Of tape
INTO five T p %Sa onr C OF
division filled with nitrogen gas and one with
mingled in the air. flame immersed in this mixture
burnt with the same yvldness ssn the air Inc Lighted
four feet deep, and two and q half in width,
exnguished as sOon as they immersed in this heavy
gas The tall indicated jar was again filled with water,
gen, were introduced Although much of this iame-
supporting oxygen existed in TINS preparatory as III inc
duced in it was instantly extng1shed demonstrating
that carbonc acid, like the dog IN the Manager VIII
do it, diners materially from nitrogen in this respect
Which merely Guts s the ocS mHs o. with
candle flame, and with burning turpentine Both We're
perimenters lungs for few seconds was sufficiently
charged with carbonic acid to put out light Hence the
with carbOnc acid, it would be fatal to combustion:
Next as TO the means OF obtaining TINS gas. inc or
hbited. But source for procuring an extraordinary
supply the Professor urged the OF carbonic acd com
the pelucid liquid was passed around and stout iron
receptacle filled with this fluid placed before the Commits
sion On opening stOpcOok tho gas issued most cop-
ously. Prof DOremus proposes that ships shall DC pro
vded with metallic tubes mo larger perhaps thall one
little nger) leading TO various compartments OF the
vessels from the deck-tha cylinders charged win lgmd
carbonic acid shall be employed having nozzs adapted
TO these tlbes-sO that in of emergency the simple
opening of stOpcOck would at once Hood thc coprt
ment TO which the tubes lead with TINS notwithstanding
gas The same simple vet effective arrangement might
be employed in bonded warehouses ana other closed
in the same way sulphurous acid gas shown to be
destructive to flame Like the preceding gas ms u als9
capable Of being iquified. quantity OF TINS nuu SUI
phurOus acid was shown ON touching valve, the liquid
was driven out with force into large glass vase, II i'm
mediatey turned into gas ana on piuhging INTO ~
stanty eXtngushed \ gallon OF TINS liquid VIII give OH
about cubic feet of suphurous acid gas. III is pro
posed that this Quihed gas shall be employed In stint
lar manner 20 the liquid carboie acid VIZ IN shlabe
cylinders, with StOpcOcks adapted 10 the dstrbutlng
liquid FORM were adyerted 10, ms convenient sources
for supplying agencies instantly destructive 20 hre
BY dischargng the liquid carboac aed INTO Dag MIA
temperature was produced SO intensely God tht sonu
CaIbOnic acid produced. From this the gas was us
charged and tested Other interesting experiments We're
made though not intended demonstrate the previous
subject The snowy looking solid carbonie acid was
mixed with ether aud placed ON mercury, IN sword
shaped trough. In Few minutes sond lneIcula sNoI
three feet long and Is pounds In weight, was produced
Mercury frozen in cup shape ON pouring water III
IT, the latter frOZe, while the mercury melted Eggs were
CONCEALED An alcoholic thermometer sank below it,
gradatiOns which extended 10 20 degrees below zero
large cylinder OF produced by evaporation OF
liquid carbonic acid, made by Mr. Low, OF 1ronauiic
celebrity. shown. Some curious eXpcrlments on te
spher6da condition" Of liquids made 10 illustrate
and answer the inquiries OF some of the Commission
The Board were In session yesterday examining models
and Inventions Prof. Ogden Doremus addressed the
BOARD i'm reference TO the experiments that were made
the day previous at the New-fofk Cohegc; Mr. NC
Dougall read paper the construction Of boilers, also
explaining the causes of explosions The Board have nm
ished their examination and test OF locked safety waves
Ii is not known as vet what valve valves they have
ended for general use The report will have 20
he forwarded to the Secretary OF the Treasury before
can be given 10 the public.
lp is he