SMITHSONIAN CONTRIBUTIONS TO KNOWLEDGE 



: 842 -■ 



ON THE APPLICATION OF 



INTERFERENCE METHODS 



TO 



SPECTROSCOPIC MEASUREMENTS 



l©itf) iFitc p\at£0 



BY 



ALBERT A. MICHELSON 



CITY OF WASHINOTON 

 PUBLISHED BY THE SMITHSONIAN INSTITUTION 



1892 



