Green-Mountain freeman. [volume] (Montpelier, Vt.) 1844-1884, 1875-02-10
CANS. unless the application Of cold be con-
inued for a CO siderable time. This is not

tluucu LOT II co 'SlIcIttDlC IlIIlC. \ AAS ~ wv
he case, however, when the animal has
'een previously exposed to warmth Inc
cltaneous vessels become paralvzed ny
the heat, and remain dilated even after the
:old has been applied. The blood is thus
exposed over a large surface and becomes
rapidly cooled, even though the tempera-
tnrr Of the surrounding medium is not very
!ow. In Rosenlhal's experiments. animals
y to lO4 oF. The temperature of the
,nimals quickly rose during their con-
inemcnt to ITO or 1l3o. After their
removal it not only sank to the normal
temperature but even below it. 80 that an
'nimal which was ON 1913 to l1lo in
he warming apparatus fell to 96.8 ,. and
emained ut that for several days. although
he room in which it was kept was modrr-
'trlv warm. Confinement in Il close office.
hot theatre, or crowded ballroom. HIS IL
similar effect on man. From such places
people pass out into the cool open air, or
sometimes even purposely station Them
selves in drlught. ! he blood, which is
'oursing through the d lated vessels on
very part of the surface. is rapidly cooled,
md, on S return to the internal organs.
! cools them much more quickly than it
,ould have done had the person simply
| Seen exposed to cold without dl.at;tion of
he vessels by previous warmth Rosen-
| hll lays much sire on the great effect
# sudden cooling in bringing a cold,
The sudden change in the temperature OF
he blood producing An irritating effect,
and inducing Inflammation in any weak or
ram i'll Il way that :, gradual alteration
would not do 1t would seem, however.
that the alteration must be from Il tempera-
ure above to one below the normal tenn
pcr;,tHre of the blood, and not Il mere re-
iuction from one considerably above the
normal to one ut or near it, When much
heated we may stand for 4 short time in a
cool atmosphere with impunity; but if we
stand long enough to produce Il Shiver, we
run great risk of catching cold. Tn.
fact that it is more dangerous to sit for 4
long than Il short time in wet clothes, APP
pears TO Indicate that 4 considerable ant
more gradual cooling, such rs may tier
occur, will produce similar effects to {:
slight cooling suddenly effected by expos
ure to Il cold draught after being in {:
warm room. The effect of Il chill in caus
ny intl tnmttions may be partly due t
he effect of cold on the tissues themselves
: and partly to the congestion which will
= occur III some parts when the God i
riven out Of others by the contraction o
their vessels. ko>enhal is inclined t,
,scr be the chief power to the forme
cause. Everybody knows the beneliri,
fleet of cold baths. cold spnnyin~ &c. il
:, hardening" persons, as it is termed. $
:, hat they are able to ftctalmo>t any wealth
y en- and to endure sudden changes of tenn
pcrtturr without injury. Rosenlhll con
~i'lrrs that the equent application of col
water or cool :l;r Increases the tone of til
cut ncuus vessel, SO that they do not b,
come 50 much relaxed by heat IL to be III
e bile to contract with sufficient force whe
! nrcr- sary- The power of regulating III
p temperature is thus preserved. and III
i person prevented from catching cold.
PREVENTING WATER PIPES FROM BUESr
: '\G.-Ihe following pl II for the prevel
. ton of the bursting OF WI er pipes durn
:. fto>tv weather has been invented in En-.
!. land. Ii is we'll known that when wat,
;. freezes itcNpand-. AMI lhtt the force cxer
ed IS so enormous that no pi pc can resist i
i. This invention is intended to .: We the W;
i, ter Il chance to expand without b ,rstin
= the pipe 1t attempts is by securing
f the insi 'r of the metal pipe ii space equ:
- /" the d ference of volume between W;
# ter and ice, 50 that when the water frrrz,
! ii occupies tn sptrc reserved for it. il
;, stead of cXcrting its force on the pipe All
# bursting it. This is practically carri,
I. ont by passing through the water pipe
II ~mtli India rubber tube. specially mad
/ lur the purpose, and of such Il di;,mttt
II that the space inside it is !; little more til;
!. equal to the increase in volume of the c
q
= of air. 50 thu; when the water freezes
-. finds the nee essary space for Xpan>ion. f
IN by comprising the air tube it di>pllc,
-, m'lt> the tub, again expands. become
~ filled with air, and is ready for anoth,
- fro~t. and 50 on for any Number of tim,
without lrQlIlrIn.r alltul ion