The Investigation of Dust Conditions 



in Schools 



Positive Proof That Dust is a Menace to Health 



^^"T is only in recent years that science has 



I sought to improve the hygienic conditions 

 of our school buildings. Among the most 

 interesting and enlightening of the various 

 ^^ experiments conducted, have been those 

 dealing with dust and its relation to the 

 transmission of contagious diseases. 



Webster defines "dust" as "fine, dry particles of 

 earth or other matter, so 

 comminuted that they may 

 be raised and wafted by 

 the wind." These dust par- 

 ticles may, for purposes of 

 .discussion, be grouped in two 

 classes — first, those larger 

 particles which are easily 

 discernible by the naked eye; 

 and second, those lesser par- 

 ticles, invisible except under 

 a glass and strong illumina- 

 tion. The various defini- 

 tions of "dust" describe it as 

 being made up of earth 

 and other matter — which may 

 be either mineral, vegetable 

 or animal. Bacteriological 

 research demonstrates that 

 a very large proportion of 

 the "other matter" belongs 

 to the "second class" and is 

 composed of dangerous dis- 

 ease germs. This being the 

 case, the bacilli of Tuber- 

 culosis, Typhoid, Diphtheria, 

 Pneumonia and other equally 

 menacing diseases are easily 

 transmitted from place to 

 place, and it naturally fol- 

 lows that in places of public 

 assembly the danger of dust contagion is greatest. 

 In class-rooms, lecture halls, laboratories, audi- 

 toriums or other departments of 

 our schools and colleges, dust is 

 present in its most dangerous 

 form. Pupils naturally track in 

 from out of doors large amounts 

 of dust and dirt — the frequent 

 shifting of classes, the constant 

 movement of feet and the various 

 drafts and air-currents produce 

 a continuous circulation of the 

 dust and bacteria, dangerous to 

 anyone breathing it. 



Actual tests demonstrate posi- 

 tively that circulating dust can 



be reduced nearly one hundred per cent, and that 

 the only feasible method of accomplishing the pur- 

 pose is by treating the floors with a preparation that 

 will not only catch and hold the dust particles but 

 kill the disease bacilli as well. 



In view of the splendid results obtained from 

 Standard Floor Dressing, its use on wood floors 

 cannot be too highly recommended, whether for 

 schools, colleges, hospitals, 

 stores or public buildings. 

 It is not intended for house- 

 hold use, and should not be 

 applied to any floor in the 

 home. 



Standard Floor Dressing 

 is, at the present time, being 

 used in a great number of 

 educational institutions, in 

 hospitals, in great mercantile 

 houses and public buildings. 

 It has in every instance 

 proved of inestimable value 

 and substantiates every claim 

 made for it. In addition, it is 

 an excellent floor preserva- 

 tive, as it prevents splintering 

 and cracking of the wood. 



Standard Floor Dressing 

 is very reasonable in price, 

 and a little of it goes a long 

 way. Three or four treat- 

 ments a year with the patent 

 Standard Oiler affords the 

 most satisfactory results, as 

 the dressing is then evenly 

 distributed over the floor sur- 

 face. It pays for itself many 

 times over by saving labor. 

 As there is no dust in rooms 

 with floors treated with Standard Floor Dressing, 

 sweeping is made a pleasure, and the floors can be 

 kept clean and in an absolutely sanitary condition 

 at the least cost. 



As a demonstration of its efliciency, we are will- 

 ing to treat one floor in room or corridor of any 

 school or public building with Standard Floor 

 Dressing, and AT OUR OWN EXPENSE. 



To localities far removed from our agencies, we 

 will send free sample with full directions for applying. 

 Upon request we will send testimonials, reports, 

 our book, "Dust and Its Dangers," and full par- 

 ticulars regarding our free trial offer. 



STANDARD OIL COMPANY 



(Incorporated) 



