M.-P— Vol. I.] CRAWFORD— CONSTANT OF REFRACTION. 1 75 



Star No. 1019— (With 1009.) 



[p ] = 56 ; log [pvv ] = 6.7654 



p. e. = ± 0.00038 



[p 1 = 56 ; log [pw] = 6.2338 



^ — 0.00218 



p, e. = _~h 0.00020 



