Idaho semi-weekly world. [volume] (Idaho City, Idaho Territory) 1875-1908, 1888-05-29
ABOUT FERTILIZATION.
the Amount Of Water Evaporstsd Daily
BY the Lungs and skin

by the Lungs and Skin.
The human body is made up for the
most part Of water. A man weighing
l54 pounds contains about ITO pounds
OF water. and only forty live pounds OF
dry matter. Water is therefore vitality
necessary to all human existence, and
is supplied in all kinds Of food. as we'll
as with liquids, and also in the atmos-
phere that We breathe. 1t is constantly
being thrown off from the body, and
forms very important agent in re-
moving decayed matter from the sys-
tenn. Water is removed from the sys-
tenn by means Of the kidneys. by the
lungs and through the skin. The
amount of water daily evaporated by
lungs and skin, in healthy condition
OF the system. is equal to about one
third of the weight of the whole food,
solid and liquid. which is taken into the
stomach. The skin of q full-grown
man therefore exhales in twenty-four
hours, in ordinary circumstances, from
one and half to two pounds of water
in insensible perspiration. When, in
hot weather, or in undergoing violent
excrtion the perspiration becomes SEN
sible, and instead of exhaling in gentle
moisture is thrown off in large drops Of
water, much greater weight is dis
posed of in this way. The action OF
this exhalation takes place through
glands. These glands are cylindrical
tubes, arranged in the form OF a globu
lar coil situated in the connective
tissue Immediately under the thru
and inner layer Of the skin. From
each gland small duct passes upward
through the layers of the skin and ter
inmates in very minute and obliqu,
opening on the surface. The folds o
the respiratory gland are surrounde,
by close network of capillary bloo'
vessels. from which the watery ant
salt ingredients of the perspiration ar
exuded into the tube, and by capillar
attraction are drawn to the surface an
thrown off. 1t does not seem so straug
that the human body can throw o
nearly two pints of water daily, so grad
ually and so gently that it is not fel
as moisture, when we remember ho'
many glands there are and how yer
small each atom of moisture must b.
On the back, the thighs and legs ther
are about 500 respiratory glands
the square inch; on the breas
the forehead, neck, forearm. an
back of the hand and foot, about LOO
to the square inch; and on the sole {
the foot and on the palm of the hant
200 in the same space. 1t is estimate
that the number of respiratory glant
over the whole body is not less than
300,0 900, and as each tubular coil whe
unraveled is about one-fifteenth of 9
inch in length. the entire extent
tubing used to throw off the perspir
ton is not less than $4,000 inches.
nearly two miles and half. A ce
tain portion of sdecaying matter of Il
body is thrown off through the perspir
ton, but the principal Office of this e
halation is to regulate the temperate
of the body. When the body is kept
!. state of cleanliness and health.
that the circulation is regular and t
: perspiratory glands are always even
:. but seldom abnormally active, expo
J.. ure to severe cold can be safely born
y When undue exertion brings out
greater flow of perspiration than C
. be readily and quickly removed
9 evaporation, the moisture chills
=, skin surface, the little mouths of
- sweat tubes contract, there is wi
y we call a checking of the perspiratit
= which Immediately produces a sen
= ton of chilliness. We have tax
W cold, we say, and severe illness of
"a results from this interference with
10 natural evaporation of the skin
= Chicago Inter Ocean.