...latter with the powerful spectroscope kindly lent by Mr. Spottiswoode. 1 " One hundred and twenty-six measures have been made of the displacement of the F line in the spectra of 20 stars as compared with hydrogen, 15 of the displacement of the b lines in the spectra of 6 stars...

...proportion of days on which the chromosphere could be satisfactorily examined. One hundred and thirteen measures have been made of the displacement of the F line in the spectra of 20 stars as compared with that of hydrogen ; and 92 measures of the displacement of the b lines in...

...the spectra of several spots. For the determination of motions of stars in the line of sight, 1 68 measures have been made of the displacement of the F line in the spectra of 43 stars, 87 of the bl line in 27 stars, and 8 of the bt line in 4 of these stars. Of these 70 stars,...

...in the spectra of several spots. For the determination of motions of stars in the lire of sight, 168 measures have been made of the displacement of the F line in the spectra of 43 stars, £7 of the ó¡ line in 27 stars, and 8 of the ¿4 line in 4 of these stars. Of these 70...

...corresponding in the solar spectrum. For the determination of motions of stars in the line of sight, 177 measures have been made of the displacement of the F line in the spectra of 41 stars, 68 of the bl line in 19 stars, and 9 of the 54 line in 5 stars. Of the 61 stars observed,...

...the spectra of several spots. From the determination of motions of stars in the line of sight 1 68 measures have been made of the displacement of the F line, in the spectra of 43 stars, 87 of the line b, in 27 stars, and eight of the b line in four of these stars. Of these 70...

...in the solar spectium. For the determination of mo' ions of stirs in the line of sight, 177 measutes have been made of the displacement of the F line in the spectra of 41 stars, 68 of th: /', line in 19 stars, and 9 of the l>i line in 5 s'ars. Of the 61 stars obseived,...

...F line. As regards determinations of motion of stars in the line of sight, a hundred and forty-two measures have been made of the displacement of the F line in the spectra of twenty-three stars, and twenty-six measures of the line 6, in nine stars. The observations of Sirius...

...F line. As regards determinations of motion of stars in the line of sight, a hundred and forty-two measures have been made of the displacement of the F line in the spectra of twenty-three stars, and twenty-six measures of the line 6, in nine stars. The observations of Sirius...

...corresponding in the solar spectrum. For the determination of motions of stars in the line of sight, 177 measures -have been made of the displacement of the F line in the spectra of 41 stars, 68 of the 6] line in 19 stars, and 9 of the b4 line in 5 stars. Of the 61 stars observed,...