M.-P.— Vol. I.] CRAWFORD— CONSTANT OF REFRACTION. 1 83 

 Star No. 406 /. c— (With 1162.) 



[/•] = 50; log[pvv] = 5.7810 



A 



0.00318 



p. e. = zt 0.00015 



Star No. 406 /. c— (With 1179.) 



A 



[p ] = 58 ; log \pw\ = 5 .6978 



p. e. 



— 0.00292 



- o.oooir 



