How to Reduce Dust in 
Schoolrooms 
snow a well established fact that dust is accountable for the spreading of 
more cpetegiole disease; among school-children than any other one single cause. 
Whodern science and practical experience both prove that many diseases are 
held in check by simple precautionary measures. Do away with dust and many 
dangerous diseases may be averted. 
A simple dust preventive is at hand in 
STANDARD 
Floor Dressing 
is keeping down dust in thousands of schools with a success that is ex- 
Tew and site Treat floors three or four times a year with Standard Floor 
TYarshe est results. By keeping down the dust it prevents the circulation 
ence tests have proved that 9754 % of all living organisms coming in 
ct with the dressing are 4iiled. 
Besides being a dust-preventive, Standard Floor Dressing is an effective 
floor preservative and labor saver. Will not evaporate. Pays for itself 
many baie ad over. Not intended for household use. 
In order that you may be Bagot goto of the merits of Standard eg 
Or peteing, we _ apply it to the floor of one room or corridor in schoo 
dipala-t building FREE OF ALL COST. 
alities sh emoved hae our agencies, we will send free sample 
sites. Wah, directions for appiyin 
Sold in barrels and cans of poe sizes. 
Send for testimonials, reports and book «*Dust and its Dangers.’” 
ANDARD OIL COMPANY 
(ineorporated) 
siecle 
