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Keep 
The Dust Down 
In schoolrooms and gymnasiums it is of the greatest 
importance that everything be done to benefit the health 
even in the smallest degree. The harmful effects of too 
much dust in the air are well known. 
The constant shuffling of feet in the sdoolhach 
and the more violent exercise in the gymnasium, stir up 
dust and circulate it in dangerous quantities. It is of the 
greatest importance to Ppaielt eee th that the amount ¢ 
this floating dust should be reduced. 
eae 
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WIT TAN WO Gis SSK 
holds ee all dust that settles, and prevents its circulation in the 
air. Standard Floor Dressing is a special preparation, and vegetable 
and animal germs cannot find subsistence in it. ey are held 
= down and swept away at the end of the day, Many a 
gymnasiums and stores, where the importance of reducing dust w 
ecognized, have been quick to avail themselves of the properties 
f Standard Floor Dressing. 
Illustrated booklet sent free—A booklet on “Dust 
Danger and How to Avoid It” will be mailed to you free imm | 
pon receipt of your request. It contains. 7 valuable information 
4 and is a book you should have. 
Not intended for household use, . 
Standard Oil Company 
