CANARY ISLANDS. 25 



by the air ; for example — " a body of singers with great 

 power of voice, are able to break into pieces a large tum- 

 bler glass, by singing close to it its proper fundamental 

 note ; and it is from the same sympathetic communication 

 of vibrations, that two pendulum clocks fixed to the same 

 wall, or two watches lying upon the same table, will take 

 the same rate of going, though they would not agree with 

 one another, if placed in separate apartments. Mr. Elli- 

 cott even observed, that the pendulum of the one clock 

 will stop that of the other ; and that the stopped pendulum 

 will, after a certain time, resume its vibrations, and in its 

 turn, stop the vibrations of the other pendulum." * To a 

 similar cause they will say, may be attributed an increase 

 of wind from the sympathy existing between the air and 

 the whistling sound resembling that of the wind. 



Thursday, August 8, 1833. 



*Dr. Brewster. 



