River Falls journal. [volume] (River Falls, Pierce County, Wis.) 1872-2019, 1888-05-17


Normal returned lately from two
weeks sojourn in the south where he
went to rest and recuperate
Among the several very excellent fea-
lures of the work in the association at
Prescott on Saturday, May 9Th, we're, to
begin with, an excellent programmed too
| light nor yet was it too full. Every person
on the program was there and rendered
the part assigned to him. The ESSAYS
showed careful and thoughtful prepare
LONESOME of them eliciting warm discus
sion. Perhaps the warmest discussion was
in connection with geography One fac
ton, including the essayist maintained
that the primary object in teaching geog-
raphy should be the training of the mind
while the facts of the science-the accu-
mutation of knowledge of countries, &c,
should be secondary, while the other re-
versed this order. Pres Gilman declared
the time limit up before very much dam
age to the furniture had happened. Upon
whole it was a live, thoughtful, enthusiast
tic meeting and those who were absent
were the losers. This is the beginning of
series through the county. We look
for unusual activity among the teachers
In the course of his remarks upon
'School Hygiene" at the Teachers Asso-
citation May 5th, in Prescott, DR.. Young
stated the following which should come
to the notice of every teacher and parent
in the county
Dry air is a bad warmer 1t imparts
its heat to surrounding objects with great
difficulty. As illustrative of this, witness
the immunity of those experimenters who
enter and remain for brief period in a
room hot enough to roast meat. Were
the heated air moist they could not have
lived in it. Moist air at IS degrees will
feel warmer, and will warm one when
cold more quickly than very dry air will
at so degrees. Upon this point l can not
do better than to quote from a recent
report of a committee of scientific gentle
men:
Upon a pole placed upright, in the
corner of the room furtherest from the
stove, were hung three thermometers,
one s inches from the floor, another
feet inches, and the third feet2 inches,
near the ceiling. The outdoor tempera-
ture was "A degrees above zero-the in
door temperate or condition of the room
was what is usually called comfortable,
although when sitting still the feet were
none too warm. On reading the Their
floor was 50 degrees-the one feet 8
inches, 70 degrees-the top one, SO
degrees-shOwing a difference of "A
degrees between the lower and upper
thermometers. The wet bulb thermom-
eter indicating the sensible heat stood 90
degrees. Relative humidity, 80 one-hun-
dredths. Without increasing the fire in
any way vessel constructed to lit down
into the hole in the top ofthe stove contain
ing water, was so adjusted as to soon be-
gin to boil. AS evaporation progressed
the sensible heat increased till the room
became uncomfortably hot. Upon read
ing the thermometers we find that the
wet-bulb thermometer had risen from %
degrees to 80 degrees, the relative humid
ity had increased to 50 one hundredths,
and that the heat had changed places, or
more properly speaking, had become
more equally diffused throughout the
room. The bottom thermometer had
risen from % degrees to II degrees. The
middle one from 70 to so degrees, while
the top one had fallen from SO degrees to
So degrers, showing difference of only
IA degrees between top and bottom in
moist heat against Al in dry heat; bring
ing, as it were, at once twenty per cent.
of the heat from the top of the room,
where it was worse than wasted, down to
the floor where it could be utilized for our
comfort and health"
And this brings us to the consideration
of the next and more important PROPOSE
ton viz. That it is essential to comfort
and health, that the air we live in, and
breath, should contain an amount usually
present in living rooms, and which can
only be supplied by some special provis-
ion.
But it may be said in contravention,
that such a condition of air cannot exist
where here is suitable ventilation by
the full introduction of fresh air from out
of doors, as this air would be sufficiently
moist
This is quite fallacious. We are of
course considering conditions as they exist
during the winter, when rooms are of
necessity kept as perfectly closed as
possible. The air therefore brought in
for purpose of ventilation, and also in
some instances for warming, is taken at
a temperature often far below Zero is
then suddenly heated and forced into
the room. Now the capacity of air for
moisture increases with great rapidity in
proportion as its temperature Is raised; so
air at zero heated up to so degrees, has
its capacity for absorbing end retaining
moisture increased % times, and would
be insufferably dry without some artificial
provision for supplying its thirst. And
enough has been said to show that it is
not best that the inmates of these rooms
should themselves be the sources of
supply.