DESTROYING AND REPELLING MOSQUITOES 101 



doors and windows should receive special attention 

 because it is in warm cellars that the adult mosquitoes like 

 best of all to pass the winter. 



GOING INDOORS EARLY AT NIGHT 



There has heretofore been a prevailing idea that night 

 air caused malaria. We now know that night air is as 

 pure and health-giving as any air, and that chills and 

 fevers are contracted from the bites of Anopheles mosqui- 

 toes that fly at night, and not from any "miasma" in the 

 air. It is therefore just as important that we remain 

 in the house at night as it ever was. Moreover, it is 

 important that we either go within doors early, before 

 dusk, or very carefully screen our porches. It should 

 be said, however, that Anopheles do bite in the daytime. 

 Nevertheless, they are most numerous at night and do most 

 of their biting about dusk. In hot climates, houses are 

 built with as much porch room as possible, and people are 

 much in the habit of sitting on these unprotected 

 verandas. If malaria is to be escaped, such porches must 

 be screened. 



COOL SLEEPING ROOMS 



In many of the Southern states mosquitoes breed and 

 remain active very late in the fall. If sleeping rooms are 

 kept warm, these insects will remain active and virulent 

 for some time. To avoid this, one should not have fires 

 in the sleeping room, except, possibly, for a little while 

 in the early morning at rising time. In other words, 

 mosquitoes should be made to lie dormant by low tem- 

 peratures if possible. 



