FUR. LINEN. 183 



Q. Why is it COOL under a SHADY tree in a 

 hot summer's day ? 



A. 1st Because the overhanging 

 foliage screens off the rays of the sun : 



2ndly As the rays of the sun are 

 warded off, the air (beneath the tree) is 

 not heated by the reflection of the earth : 

 and 



3rdly The leaves of trees, being non- 

 conductors, allow no heat to penetrate 

 through them. 



Q, Why do the LAPLANDERS wear SKINS, with 



the FUR INWARDS ? 



A. The dry skin prevents the wind 

 from penetrating to their body ; and as 

 the fur contains a quantity of air between 

 its hairs (which soon becomes heated by 

 the body) the Laplander is clad in a case 

 of hot air, impervious to the cold and wind. 



Q. Wliy docs a LINEN SHIRT feel COLDER 

 than a COTTON ONE? 



A. Linen is a much better conductor 

 than cotton , and, therefore, (as soon as 

 it touches the body) it more rapidly 

 draws away the heat, and produces a 

 sensation of cold. 



R2 



