The Canton mail. [volume] (Canton, Miss.) 18??-1882, 1875-09-04
Cold, Fog, Mist and Air.

. bility of fog and mist may have it
temperature reduced, according to tn,
experiments of M. Rsnou, as low as 81
, 36 and As degrees below the freezing
point of water and still remain liquid
This fact is important in comprehend
ing the injury done to cotton plants by
cold nights, heavy fogs and mists, which
deprive tender vegetables and animal.
of their proper warmth much faster
than dryer atmosphere wnuld do. Ole
people whose blood is chilled and life
feeble experience the greatest incon
venience from dense fog or moderate
rain to carry off their little animal heat.
Fogs naturally become impregnated
with all deleterious exhalations from
impure surfaces, whether swamps,
lakes, rivers or cities and it is we'll to
kindle fires in living or sleeping rooms
to e1pel that humidity which is so ready
to catch and hold all organic poisons
that may float in the atmosphere.
Keep out of the fog as much as posi-
BILE. After the sun has dispelled it, you
may walk, ride or drive in different
climate, for solar heat removes not only
impure vessicles from the air, but
microscopic organisms which are the
germs of all malaria. F1ammarion
found these in mis- aerOnautical excur-
/
surface of the earth. Currents of wind
and air carry fine dust to an equal
| height /; and all know that the suns heat
moves the atmosphere. Kaemtk has
| taken a great number of measurements
of the diameter of the vessicles of mist
in Central Germany and Switzerland.
They are smallest in July and August.
The least were $500, 600 of an inch in
diameter.
How a cloud or visible vapor is formed
In the atmosphere where one did not
exist few months before may be worth
plain statement. Let us suppose a
certain quantity of air at Sc degrees
contains 478 grains of invisible water,
the air being quite transparent. If
from the descent of colder air the tenn
perature falls from SO to II degrees, or
it receives an accession of moisture it
will become obaque. A cloud is formed.
A diminution of nine degrees of heat
will cause 1O8 grains of vapor of water
to be condensed and become visible as
a mist OF cloud. Condense these clouds
still farther and rain is produced. Dew
is atmospheric moisture percipitated on
grass, forest leaves and other surfaces
which absorb atmospheric heat as the
surface of pitcher of ice-water. It is
not alone the wet feet and garments that
mako walking in dew, especially the
heavy dews of autumn, unhealthy.
One is liable to inhale parasites which
may fasten on the liver, spleen or other
organs, and develop chills and fever. A
man on horseback may escape a disease
that will attack Ole on foot, both pass
ing over the same malarious ground.
Hence it is better to ride than walk into
swamp to hunt stock, or for any pur-
pose. Draining low, wet ground, ia
conducive to health, and therefore to be
commended. It will improve our eli
mate for cotton, grapes, and other fruit.
An excess OF dampness is very injurious
on many accounts.
Boussingault has endeavored to meas |
ure the average fall of dew per square |
yard on his farm in Alsace. After night, |
when the dew has fallen abundantly, he |
visited his meadows on the banks of the |
river Sauer before sunrise; there by the |
aid of sponge, he soaked up the water |
over forty-three square feet of grass,
which he placed in bottle and weighed. |
In some instances it was found to exceed
two pounds In weight. Dew and mist
contain about the same proportions of
ammonia and nitric acid : and both are
favorable to growing plants like grass,
turnips and cabbage.
At fourteen degrees of temperature,
one grain of water saturatef q cubic |
foot of air but if the air be raised to
one hundred degrees, it takes twenty
grains OF water to saturate it. These
facts show how much heat has to do
with the capacity of air to transport
water from one part of the globe to
another. At 212 degrees the air is
capable of absorbing q quantity of
vapor of water equal to its own volume.
Imagine every cubic foot of air over an
acre of ground to the height of LOCO
feet to be saturated with water at
of 100 degrees, and that a
mass of cold air should fall upon it
sufficient to reduce the heat to 40 de-
grees. Every square foot would receive
16, 900 grains of water in a sudden
deluge.
The air and it's phenomena are not
sufficiently studied. Tyndall says
The suppression for single summers
night Of vapor of water contained in the
ever England (and the
holds true for all the coun-
tries in similar latitudes) would be ac-
plants which are killed by frosts. In
the desert of Sahara, where the ground
is fire and the wind fame, the cold at
night is often very difficult to support.
In this hot country ice is seen to form
in the course of the night"
We have the highest authority for
saying that three-fourths of mans
daily food is air and all know that he
needs to inhale fresh air every minute,
night and day, SO long as life lasts.
At every breathing, the air that leaves
the lungs contains one hundred times
more carbonic acid, and therefore car
bon, than it did when it entered the
organs of respiration. With a very
little fuel vital air and water run the
human machine. A good engineer will
study to keep it in first rate working
order, avoiding all extremes. ALI food
must be burnt in some form in a nan,
or do harm as something out of place.
Breathing fog and poisons, sleeping in
pestiforous mists, drinking bad water
and worse liquors, eating everything
that should be avoided, present many
facts for contemplation and reform.
Science is very suggestive, especially in
telling one what to do, when the air he
breathes is full of voracious, invisible
enemies. There are extensive dis
trlcts where more persons in 1000 live
now to be forty years old than formerly
lived to be twenty. Science more than
doubles the average length of life, and
often adds ten fold to the laboring
mans power to support himself and
family comfortably during his length
ened years. Air, water and sunshine
are not SO exclusive, nor so costly as
many pretend. Science is the common
of humanity.-Erchange.
GUsTAvE DoRE.-Dore, the world-fa-
nous artist, whose brush and pencil
have realized for him magnificent for
tune, lives very simply in a retired
street of Paris, with studio of one
story occupied entirely as his artist |
workshop, but furnished with a plain
ness in striking contrast with the Pom
peian magnifcence displayed in the
London residence of his rival, Alma
Tadema. Visitors find him busy with
his pencil or absorbed in creative rev.