194 REFLECTION. 



of the fire back upon the meat ; and, 

 therefore, assists the process of roasting 

 and helps to keep the kitchen cool. 



Q. How does a tin REFLECTOR tend to keep the 



KITCHEN COOL? 



A. Because it confines the heat to 

 the hearth, and prevents it from being 

 dispersed throughout the kitchen. 



Q. Why does a LAMP GLASS DIMINISH the 



SMOKE of a LAMP ? 



A. As glass is a reflector, it reflects 

 the heat of the lamp back upon the flame ; 

 in consequence of which, less carbon 

 escapes unconsumed (as smoke). 



Q. Why are SHOES HOTTEK for being DUSTY ? 



A. 1st Because dust absorbs heat : 

 and 



2ndly As it destroys the blackness 

 of our shoes, it prevents them from 

 throwing off the heat oj our feet in rays. 



Q. Why can we not SEE into the ROAD or 

 STREET, when a CANDLE is lighted in a room ? 



A. Glass is a reflector ; and, there- 

 fore, throws the rays of the candle back 

 into the room, and thus prevents our 

 seeing into the road or street. 



