Hygienic Importance of Dustless Conditions 
in School Buildings 
The problem of preserv ing hygienic conditions in school build- 
ings 1s one that deserves the serious attention of those responsible’ 
for the health of pupils under their care 
Ample ventilation and scrupulous cleanliness are vital, but 
unless the floors receive proper attention and treatment the dust” . 
that accumulates will bea constant menace, for dust is recognized 
as the greatest carrier and distributer of disease-germs known. 
A simple yet effective treatment of floors is found in 
- STANDARD | 
FLOOR DRESSING | 
—a preparation that accomplishes its purpose by catching: and 
holding all dust particles and’ killing millions of disease-bacilli 
ming in contact with it. Then, again, Standard Floor Dressing 
“preserves. the floors BY preventing them from cracking an 
° Ae a Jast longer and reduces the 
na 
he 
5° 
et 
@ 
was 
= 
a 
ms 
rt 
% 
= 
4°) 
Three or four treatments. a did are all that are necessary. 
Not intended for household u 
A TRIAL FREE OF ALL COST 
will gladly prove the efficiency of Standard Floor raat asa a dust 
paek ve, by owe Dw bya ps = — or corridor in any school or 
public building AT 
To localities far petty Pee our agencies, we will send free 
ocene with full directions for applying. 
Sold in barrels, at barrels, and in wa = five 
for 
gallon cans. rite Sy 
and book, the and Its Daron 
STAND OIL COMP. ANY 
; rated) 
