216 



The Rev. Dr. Robinson on the Constant of Refraction. 



22 X rfB = — 24".99 

 K = 6.3200 



1".14 

 0.180 



19 2 Sagittarii. 

 8 = - 29° 53' 25". 75 (J). 

 Precession = -\- 0".884 ; sec var. = + O"- ^59 ; proper motion = — 0". 014. 



18 X «?R = - 

 K = 9.5710 



41".41 



dK—— 2".30 

 dn=- 0.241 



