FIG. 48. An evaporating dish. 



but soon they are moist again, no matter how cool the 

 weather. After wiping them a few more times your 

 handkerchief becomes soaking wet, and you hang it 

 up to dry. There may be a good breeze stirring, yet 

 your handkerchief does not get dry. By this time the 

 perspiration is running off your face and hands, and your 

 underclothes are getting drenched with perspiration. 



You hurry into the house, change your clothes, bathe 

 and wipe yourself dry with a towel. When you find that 

 your wet things are not drying, and that your dry ones 

 are rapidly becoming moist, you hastily build a fire 

 and hang your clothes beside it. No use, your clothes 

 remain as wet as ever. If you get them very hot the 

 moisture in them will boil and turn to steam, of course, 

 but the steam will all turn back to water as soon as it 

 cools a little and the drops will cling to your clothes 

 and to everything around the room. You will have 

 to get used to living in wet clothes. You won't catch 



