Helena weekly herald. [volume] (Helena, Mont.) 1867-1900, 1882-03-02
KEEPING WARM.
Some Scientific Facts and Principles
Plainly Stated.
american AgriculturisI

American Agricultmist
That sheltering all animals from cold we:,-
ther from chilling winds which by their
rapid motion carry Off heat more rapidly, is
the way to save food and to save waste of
flesh. If by stopping this waste of heat
from the surface all the food consumed will
/ not be wanted to make heat, :. portion of it
can 90 to increasing the flesh that is to pro-
ducin9 growth, or more can be used in
making milk, eggs, etc, within the animal.
Dyspeptic persons, those having feeble di-
gestiOn or poor appetite get less internal
heat from food combustion, and suffer from
cold Such persons need a warmer atmOS
phere or warmer dwellings, and warmer
clothing to retain the heat that is produced.
This applies to all animals.
Close-titting garments, garterS, laclng,
boots, shoes, neckties etc. that prevent free
easy circulation OF the blood, each and all
diminish the amount of heat and its uni
form distribution. Exercise promotes more
rapid circulation Of the blood and increased
heat production.
Rubbing wet horses and other animals
dry is very useful, not only to save heat, but
also to save cold taking, as explained in our
last number For the same reason any damp
garments should be replaced with dry ones
as soon as possible, or enough covering be
added to prevent chilliness from the eyapo-
ration.
Free perspiration sweating in hot weather
carries off q large amount of heat, and keeps
down the temperature. If perspiratiOn be
checked, sponging with water aids in cases
of sun-stroke or depression from heat. Per-
sons have gone into hot ovens unharmed by
encasing themselves in mostened garments,
the evaporation keeping down the heat
about the body. Green wood, besides its in
convenience, is very improbable. A large
amount of heat which the dry portions
would yield is lost by being carried off in the
evaporation of the sap. So of any wet or
damp fuel of any kind.
AS confined air is a poor conductor OF heat,
all fabrics that are porous that is, full of
little interstices, tubes or holes filled with
air, are the best protector to keep heat from
escaping from the surface of the body.
loosely woven garment or bed cOverlld, is
warmer than a compact, firmly woven one,
because the air in the texture of the former
conducts away heat less rapidly than the
more solid ones. LoOse-ftting garments are
warmer than close-fitting ones, for reasons
above given, and also because the air-space
between them and the skin is a nOn-condu
tor of heat.
Stone brick OF wooden walls, with perpen-
dicular air-spaces in them, are warmer
than solid walls, because the air conducts
the heat away less than the solid materials.
sheathing of tarred paper, or paste-board or
any thick paper, even, placed midway be-
tween the clap-boarding and the plastering,
to form two thin air-chambers. instead of one,
adds greatly to the warmth of a house or
other building. Two halt-inch boards set a
little apart to leave an air-space between,
makea far warmer house-wall than the same
thickness of wood in inch-bOards.
A layer of loose straw put between the
wall and the earth banking up of a cellar
adds much to the warmth, On account of the
air in the meshes of the straw. The same is
true in covering roots OF apples to be left
out in heaps over winter
Double glass windows are several times
warmer than single glass, because Ofthe non
conducting film of air between So of double
doors
Moving air both carries off heat faster of
itself and also increases evaporation, thus
largely diminishing the temperature very
small crack in a window, under or over, or
by the side of a door or sash, or elsewhere,
produces draft that requires much extra
fuel to cOunteract the effects.