Deseret evening news. [volume] (Great Salt Lake City [Utah]) 1867-1920, 1895-02-02

the Salt Lake Comfy teachers, held on
Saturday, January 10th,
IMPURE AIR AND VENTILATION.
The subject Of ventilation, Tor the
purpose OF securing an adequate supply
Of pure air is one OF much Importance
The dangers Of impure mir, water and
food depend largely upon the TACT that
mcdil may be introduced into the body
particles Of organic matter living or
dead, which tend 10 produce disease in
the recipient
The impurities OF arr which are to be
disposed oi by ventilation are for the
most part derived from the human
body, chiefly from respiration.
The impurities OF air. due to the
presence OF human beings consist main.
iy OF carbonic acid, sulphureued hydro.
gen, and OF various organic compounds
mostly in the form Of minute particles
OF organic matter Of uncertain structure
but extremely prone 10 dgcompo ition.
Il Is usual to estimate the degree Of
impunty by the amount Of cdrbonic
acid present, although cafbonic acid
itself is not injurious to health, unless
present in much greater proportion than
that In which It will be found in quite
crowded habitatious.
Il Is impcrcepublc to the sense, and
Is merely taken as the measure OF i'm.
purity because OF the readiness with
which tests can be made to determine
is presence. Repeated test, prove that
when Il is present Ia excess OF o parts
In 10000 volumes, there are many or.
ganic impurities present which have an
injurious effect upon the system saturat.
ed with h.
The following test Is quite sa,isiac-
tory;
Lcta person having a normal sense OF
smell enter a room from the fresh air; u
be detect a musty or dissgreeablU odor,
there Is an excess OF caTbonic acid
impurity present, and also minute par
ticlcs Of organic matter undergoing
decomposition.
The evil effects Of breathing such air
are headache, languor loss OF ap.
petite. sore throat aud the general low
cung OF the vital forces, rendering
the body liable to contract any OF the
accidental diseases which happen 10 be
prevailing at the time.
The defect 10 most places for yentils-
ton IS In the air supply. Many people
suppose they have made all necessary
provision for ventilation, Il they have
put IN tubes or openings for the escape
Of foul air. forgetting that these outlets
have no effect II corresponding inlets
are not provided.
IL IS not necessary that the outlets be
OF greater diameter than the inlets, as
some have supposed TO allow for the
expansion OF the heated air, MS the
velocity Of the outgoing current IS Us.
ually greater than the coming la.
The real difficulty OF a perfect system
oil heat and ventilation Is the expense.
In cold weather the air must be
warmed to secure comfort, It must be
changed to secure ventilation. The
changing OF the air carries oil heat, the
loss OF Ihich must be supplied by fuel,
which fuel costs money. The greater
the ventilation, the more rapid the
change AID the more heat required.
HNERcisE.
The ease and the completeness with
which the functions Of an organ or OF
an organism Is performed depend to a
great extent upon the frequency and
regularity with which such functions
are exercised. Hence comes the i'm.
portance OF bodily exercise TOT the pre-
servation OF health.
Bodily exercise means more than the
development OF muscle. The nervous
system requires exercise even 10 a
greater extent than the musclar II Is
worry that kills, not work.
II Is estimated that exercise equiya'
lent to a walk OF eight or nine miles a
day, Is required to maintain the body
ia healthy state, The majority Of
trades and bodily occupations demand
nt least this amount OF work.
one OF the most important questions
with regard to physical exercise Is the
extent to,and manner IN which u should
be provided for In a proper system oi
education.
There are three classes OF exercise in
vogue;
!. The gymnastics OF the Germans.
,. The Swedish system, which con-
sists in a variety Of simple though
varied movements.
And the English system, or rather
want OF system, consisting largely OF
athletic games and contests OF Vauous
kinds.
The best form Of exercise is that
which takes the person into the fresh
air. II the exercise be OF pleasur-
able nature SO much the better RelaXl-
ton OF the pent up nerves is best ac'
complished by gentle exercise without
fatigue. Such exercise has beneficial
effect upon nutrition by stimulating the
action of the heart, accelerlting the
circulation and increasing the rcspira-
ton. Il thus increases the aNidatlon OF
waste products and leaves room for the
assimilation OF nutrIment.
Walking. riding, bathing, boating,
ETC., comes under this head.
Persons engaged In mental work are
not able TO take as much physical exer-
else as those who are not
Expenditure Of brain tissue Is not TO
be repaired by muscular cXertion, but
by sleep and TODD, aud exercise in the
open air sufficient TO produce appetite
aud sufficient WEAKNESS TO insure rest
ill sleep.
Exercise for the sake Of health and
comfort is not an end, but a means, yet
II this means can be made TO secure To
the person an end agreeable and pleas
ant in itself, so much the better
Violent exercise Is positively injurious
and should not be INDUCED in TO excess.
The most dangerous game that has
been invented is foot ball. Several
fatalities have resulted the past season,
and permanent injuries are frequent.
The attendance OF a surgeon and attend
ant with dressing AT each game OF foot
ball played at West Point military uca-
denny is compulsory. The game OF loot
ball should either be modified or pro
hlbIIed.