THE CLOTHES WE WEAR. 
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amount of warmth which will be marked on his 
thermometer at about 98 degrees. 
3 . No matter what the state of the air around us 
may be, the warmth of the body does not alter, if 
w r e are in health. This is the case whether we are 
in the icy regions of Greenland, or the hot lands of 
the tropics. It remains unchanged if we begin the 
A Doctor’s Thermometer. 
day in the scorching plains of our island, and end 
it in the coldest parts of the highest mountains. 
4 . It is by the slow burning of the food which we 
eat that this heat is produced within our bodies. 
At the same time heat passes away from the body 
by the breath and the skin; so that a loss as well 
as a gain is always going on, the one balancing the 
other. That is how it is that the warmth of the 
body remains unchanged. 
5 . We may greatly aid the body in preserving its 
proper balance of heat by wearing clothing. In a hot 
country our clothes shield us from the burning rays 
of the sun; and where the climate is cold, they 
prevent the heat of the body being carried away 
too fast by the cold air. 
6. This, however, is not the only use that clothing 
is to us. It also protects the body from dirt, and 
saves the skin from many a small injury. 
7 . Through some kinds of clothing the heat passes 
