M.-P— Vol. I.] CRAWFORD— CONSTANT OF REFRACTION. 1 77 



Star No. 1084. 



[pi = 58; log[pvv] =6.7152 



A 



O.OOIOI 



p. e. = ± 0.00035 



[/] = 58; log[pvv] = 6.6817 



— 0.00104 

 p. e. = ± 0.00034 



