Why Contagious Diseases Are So 

 Quickly Transmitted in Schoolrooms. 



A SURE METHOD OF PREVENTION 



HE time is not far distant when action will 

 be taken by the Boards] of Health in every 

 city, town and village of this country, to 

 compel the elimination of the dust in school- 

 rooms by proper care of the floors. 

 Educators are rapidly coming to a reali- 

 zation of the fact that "dust" is the principal cause 

 of disease transmission among school children. 

 The floors in schoolrooms are bare, and when large 

 numbers of pupils are assembled the constant motion 

 of feet produces a continuous circulation of dust. 

 These dust particles are composed of vegetable, animal, 

 and mineral material finely pulverized. From tests 

 made with dust collected from schoolrooms and other 

 places of public assembly, 

 it has been found that 

 with the dust were un- 

 countable myriads of 

 disease germs — bacilli of 

 Tuberculosis, Typhoid 

 Fever, Diptheria, Pneu- 

 monia and other danger- 

 ous diseases. The'se 

 experiments afford irre- 

 futable proof of the dan- 

 gers arising from dust and 

 explain why contagious 

 diseases are so quickly 

 transmitted in school- 

 rooms. 



To do away with this 

 menace — to avoid the dangers of dust poisoning, it is 

 not only necessary to provide a system of ample ven- 

 tilation, but also to treat the wood floors in such a way 

 that dust and germs cannot pollute theijatmosphere. 



Standard Floor Dressing has proved itself a perfectly 

 satisfactory dust-preventive. By keeping the floors at 

 a proper degree of moisture the dressing catches and 

 holds every particle of dust and every germ coming in 

 contact with it. Tests have been conducted to de- 

 termine the quantity of dust and 'number of or- 

 ganisms which would settle on a given surface. Results 

 prove that the dust from floors treated 

 with Standard Floor Dressing is twelve times 

 greater in weight than that collected from 

 untreated floors. The inference is obvious — 

 the balance of disease-laden dust in the rooms 

 with untreated floors was circulating through 

 the air, because even after settling on the floor 

 every current of air would disturb it and start 

 it afloat again. Another test proved that dust 

 once settled upon a floor treated with Standard 

 Floor Dressing remained there, and a bacterio- 

 logical examination demonstrated that 97^2% 

 of all the disease germs caught with the dust 

 were destroyed outright. 



Such tangible proofs should convince anyone that 

 Standard Floor Dressing is invaluable for use in schools 

 as a preventive of disease. 



In addition to its germicidal properties. Standard 

 Floor Dressing does splendid work in keeping the 

 floors themselves in a state of excellent preservation. 

 It prevents the wood from splintering and cracking 

 and renders sweeping and caretaking a comparatively 

 easy task. 



While Standard Floor Dressing is not intended for 

 use in the home, it is intended for use in schools, 

 hospitals, sanitariums, stores, and public buildings of 

 every description. 

 It is sold in convenient form by dealers in every- 

 locality, and may be had 

 in full barrels, half-bar- 

 rels, one gallon, and five 

 gallon cans. 



Three or four treat- 

 ments a year give best 

 results, and when spread 

 with the patent Standard 

 Oiler may be used very 

 economically. The Oiler 

 distributes just the right 

 amount to every part of 

 the floor, and as the 

 dressing does not evap- 

 orate, one application will 

 last for several months. 

 Standard Floor Dress- 

 ing is now being used with remarkable success in 

 thousands of schools, colleges, stores, and public build- 

 ings, and we have yet to hear of an instance where the 

 dressing has failed to reduce the circulating dust 

 and kill the floating disease germs. All we ask is an 

 opportunity to prove the merits of Standard Floor 

 Dressing. 



In order to convince those who may be skeptical, 

 and those who are really interested,'we are making an 

 extraordinary ojffer. Select one room or corridor in 

 any public building under your supervision and we 

 willjfc dress the floor with Standard Floor 

 Dressing AT OUR OWN EXPENSE— the test 

 will not cost you one cent. 



To localities far removed from our agencies, 

 we will send free sample with full directions 

 for applying. 



Correspondence is desired with those re- 

 sponsible for the care of schools and public 

 buildings. Our book, "Dust and Its Dangers," 

 with testimonials and reports is sent free 

 on request. 



STANDARD OIL COMPANY 



(Incorporated) 6 



