Ventilation.

To tae Editor Of The Tribune; :,
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To ii. Editor Of The Tribune:


The subiect of ventla,ing all sorts Of buildings,
vessels steamboat cabins, &c. has at times given
rise TO much controversy, but like many other equal
" important things it has been more talked of than
real good has been effected by the takers. Iii no
use my occupying your invaluable time and atten-
ton bv again EXPLAINING the bad and injurious ei
fects produced by the present barbarous modes OF
ventilation nov in use in word there might as
well be none those now existing


Now Sir, TO ven,ilate the smallest sleeping apart
ment is the same in principle as to venula'e 'ne
larges, public building for the same thing requires
and the same thing to be got rid OF exists ID 0o''
cases alike. .ssoy nnon
cha,,;s,ry bui allow i, 10 suffice that you ana every
ono of ns gives of from the lungs daily upward OIL
On onpcee Of carbonic acid gas which entered the
innps oxygen. This is what the poets can ne
Rainy Breath &c. I call II the gas OF oeath-con'
na,on rives off the gas and note me, THIS gas
,,a;obs much heavier than the atmospheric air
shont II 10 l. Therefore ii gravitates 10 the
cor,b hut am only telling what every school
how knows-,herefore will now tell what intend
cd when commenced writing, namely, how 10 ven
,ila,e dwellings &c &c safely cheapy and efectua!y.
Suppose you are going to ventilate small or large
building the plan being the in both cases. we
will begin with chapel or theatre. large hole
ia cut on level with the lowest part of the hoor
line and box inserted containing three doors or
valves or frames of fine wire gauzes; this box may
lead into the common sewer or into any place the
open air to wit. Well this arrangement carries Oh
the carbonic acid gas. Well, then fresh air Is re-
quired To get this an aperture is cut through the
wall from five TO twelve feet above the ground, and
a trough containing like number Of regulating
wire gauzes is inserted; this admits the fresh air
Now comes the plan how TO get the bad viuated
air out of the place. similar plan is adopted 10
point of the room it is like the others but is called
The emission one. The next the admission, and the
last the exit tube for carbonic acid gas 1t running
of like water 1t will now be seen without farther
remarks, that here is resprating room ventilated
thoroughly without the least draught.


may add that carriages can be ventilated as well
as houses on this plan and tina, the perforated zinc
would answer every purpose of the wire gauze.-,
Trusting some one of your readers may be benefited
by this am, Sir, Yours respectfully, ,.,,,,


w. F. WILKINS.


IN