FROM LIGHTNING. 17 



Q. Does the flash proceed from a negative or 

 positive body ? 



A. Always from a positive 'body, or 

 one over-burdened with electric fluid. 



Q. When lightning flashes from the earth to 

 the clouds, u'hat is the flash called ? 



A. It is called the "returning 

 stroke ;" because the earth (being over- 

 burdened with electric fluid) returns the 

 surplus quantity to the clouds. 



Q. Why is it DANGEROUS to lean BACK 

 AGAINST A WALL during a thunder-storm ? 



A. Because the electric fluid some- 

 times runs down the wall of a house or 

 room; and (as a man is a better con- 

 ductor than a brick wall), would make 

 him its path, and injure him. 



Q. Why is it dangerous to RING a BELL 

 during a thunder-storm ? 



A. Bell-wire is an excellent conduc- 

 tor ; and (if a person were to touch the 

 bell-handle), the electric fluid, passing 

 down the wire, might run through his 

 hand and injure it. 



Q. Why would the lightning run through a 

 man touching a bell-handle ? 



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