The Cecil Whig. [volume] (Elkton, Md.) 1841-current, 1878-03-23

regarded, oN very lorcible appllcations
of the principles Of natural ventilation
and advances theory of malaria new
to us and we believe original with him.
1t is well known that fever and ague and
remittent fever are common in the flat lands
bordering along the Chesapeake bay and in
the level valleys of fresh water rivers as
the Potomac, PatuXent ana Susquehanna
in our State, and also in similar situations
almost everywhere throughout the earth
In such localities, during the months of
July, August and September, there are
many days when there is no ventilation In
these Typographical situations, because
there is but little horizontal motion in the
atmosphere at large. The range of the
thermometer during these months, in this
climate, Is high during the day, and the
water in the marshes and swamps being
perfectly still and exposed to the ardent
rays of the sun, is heated and gives rise to
the formation of copious vapors. 1t is
then, | believe, that the motionless air,
resting upon the Stagnaut and vaporing
waters, becomes impregnated with the poi
son of malaria. 1t is then that this poison
produces such i'll health amongst the resi-
dent population. Some of my reasons for
believing this theory to be correct, are,
that the known factors for the production
of this kind of malaria are valleys and
marshes, stagnant water, hot weather, and
the plane of atmosphere not extending to
IA great elevation above tide water. Long
experience has proved that some seasons
are more sickly than others, and that some
situations, even in close proximity to each
other, are more affected by malaria than
,tb ha h.
served some times during wet seasons, and
some times during protracted droughts;
some times when there is rank vegetable
growth, and again when this is by no means
remarkable. No positive connection be-
tween cause and effect has, as yet, been
established in this matter. The essential
essence of malaria is admitted to be an un-
settled point in science, and from the ma
ture of the elements involved in the pro-
duction of this poison, it is reasonable to
suppose, that whatever this essential es-
sence may be, on account Of It's subtitle
nature, the atmosphere would be more
likely to be charged with it and retain it,
when both air and water are at rest.
The practical details Of house venti-
lation are then considered the difficult
ties Of which DR.. Van Bibber fully APP
preciates and Of which he remarks -
. 1t is generally supposed to be an easy
matter to ventilate dwelling house or
a single room: and so it is: but to
warm and ventilate them properly is
not an easy matter. And if it is not
an easy thing to warm and ventilate q
small dwelling, or a moderate sized
chamber, how much greater is the diff
Guilty for large apartment intended to
hold hundreds of breathing men and
women! All honor to him who shall
accomplish such an undertaking in any
community. Neither talents nor means
have been spared to perfect the venti-
lation Of the two Houses of Congress,
in Washington, and also many other
large public buildings in that city, The
results are not yet satisfactory, but the
students of the subject are not discour-
aged. 1t has been said, by those who
should know, that the best ventilated
private house in this country is in Bal
timore. 1t is the residence of Thomas
Winans, Esq" regret that in view
of the Importance Of the subject treated
we have not space to present our read
ers a more extended notice of this
paper