M.-P. VOL. I.] CRAWFORD CONSTANT OF REFRACTION. 173 

 STAR No. 1005. (With 264 /. c.) 



= 56 ; log 



= 6.2452 



A I 0.00215 



P. e. = 



STAR No. 1005. (With 356 /. c.) 



A I 0.00031 



[P ] = 49 % ; log [pvv] = 6.0442 



p, e. = 



0.00019 



