The evening times., 1900-03-14

The District Commissioners recently re-
ceived complaint from DR.. p. E. Nagle,
regarding the unsanitary condition of The
lexington school building. Dr. Nagle COM
/ planned that the building was not properly
heated, that child of his in attendance
| there was obliged to sit with her wraps
| on, and that he attributed two attacks OF
illness this winter to the fact that colds
had been contracted during school hours.
| Upon receipt of the complaint the Com
missioners ordered an Immediate inVesu-
| CATION through the Health Department,
! and have just received a report which
! says that careful inspection was made
covering a period of ten days, and that as
! a result of the enquiry it was found that
| the complaint was well founded
The inspector reporting says the build
/ ing is one Of recent construction. be-
ing equipped with the Smead system or
heating and ventilation supplemented by
a fan Without entering largely into de-
| tails regarding the efficiency of the sys-
tenn in use in the lexington school build
| ing the report states that the furnaces
/ are inadequate in cold weather to suffi-
| ciently heat the entering fresh air. This
state of things was found to exist even at
| a time when the temperature OF the out
side air was above the freezing point.
The investigation showed that when the
! temperature on the outside OF the build
| ing, just previous TO its entering the fresh
air chamber, was 34.7 degrees Fahrenheit,
| and when the amount OF air entering the
i chamber was equivalent to % cubic feet
/ for each individual per minute, that the
temperature of the air as it entered the
northeast room on the first floor was but
1 S0.6 degrees.
AS a theory, the re. ort goes on TO say,
| ventilation is ordinarily considered 10 be
! a process whereby a given amount OF foul
| air is expelled and an equal quantity OF
! fresh air admitted In practice, however,
/ ii is observed that this is an impossibility
! and unfeasible. Ventilation as now un-
| derstood is merely matter of dilution.
! That is to say, fresh air must be intro
| duced in such quantity and in such man
! ner that il will be sufficient and thorough
| enough in distribution to so dilute the
| vitiated air as TO make and keep the air
| within the room practically pure, and
equal for all intents and purposes TO the
| outside atmosphere. Whatever theories
may exist. the report says. as TO the re-
quisite amount of fresh air necessary to
accomplish the object. practically. it can
not be done with a smaller amount than
! 80 cubic feet for each individual per min
ute. With conditions favorable for the
system in the above experiment, bright
| sun little or no air stirring, good fires in
| the furnaces and stack heaters. it was
, found that il was possible to raise only %
cubic feet Of air per minute for each in
| dividus to a temperature of sos degrees
! Fahrenheit and to maintain, with the com
| bined heat of the bodies of the pupils, a
| temperature of just 20 degrees in the
! school room
According TO the report, tests were made
! on February 26 The temperature of the
| outside air that day was below the freez-
| ing point, and in consequence the temper
! follows: