MANUAL OF NATURE STUDY. 
23 
It helps to warm us when we are cold, and to cool 
us when we are warm. It helps to purify the 
blood. 
2. There are tiny tubes or pores that open on 
the surface of the skin. These tubes permit the 
sweat and other impurities of the blood to escape. 
3. Bathing is necessary in order to keep these 
pores open so that impurities may continue to 
escape through them. 
4. In the morning, just after rising from bed, is 
the best time to bathe. 
5. After bathing, the skin should be dried well 
and rubbed with the hands until a warm glow sets 
in. 
6. Cool water is better than warm for bathing 
purposes. 
7. We should not bathe in a room in which the 
air is so cold as to chill the skin. 
8. On retiring at night, all clothing worn dur¬ 
ing the day should be removed from the body and 
a clean gown put on to sleep in. 
9. Our under-clothing absorbs the impurities 
as they escape from the pores of the skin, hence it 
is very filthy to wear under-garments more than a 
week without change. 
Cleanliness of nails and scalp should be urged. 
