UNIVERSITY OF CALIFORNIA PUBLICATIONS 



Determination of The Constant of 

 Refraction from Observations made 

 with The Repsold Meridian Circle 

 of The Lick Observatory 



DISSERTATION IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE 



DEGREE OF DOCTOR OF PHILOSOPHY IN THE UNIVERSITY OF CALIFORNIA 



PRESENTED IN IQOI BY 



RUSSELL TRACY CRAWFORD 



[Reprinted from the Proceedings of the California Academy of Sciences, 

 Third Series; Math.-Physics; Vol. I, No. 8.] 



