792 



explosion ; at other times the electricity which 

 was positive 14 lines, becomes suddenly zero at 

 the instant of the thunder, remains null during 

 four or five minutes, and again becomes positive. 

 The great electric clouds appeared to me in 

 general to be much more elevated in the torrid 

 zone than in Europe, and the people believe 

 that the thunder much more rarely reaches the 

 earth. 



