176 



McCLELLAN— USE OF OSCILLOGRAPH. 



April 



proximate value of this quantity being obtained. In most of the 

 cases to which the instrument has been applied, the process would 

 be quite simple, owing to the magnitude of the quantities involved. 

 The fact that the angle can be obtained is valuable in those cases 

 where curves are taken under fleeting or unknown conditions, in 

 which other methods could not be applied. 



