I think persons having average eye-sight could see it double if they selected a suitable hour for observation.

My own eye-sight is not good enough for this, but I can distinctly see this star wedged whenever the line joining the components is inclined about 45 deg.

to the horizon, and also when Lyra is near the zenith.] [Footnote 5: They were so described by Admiral Smyth in 1839.

Mr.Main, in 1862, describes them as straw-coloured and reddish, while Mr.Webb, in 1865, saw them pale-yellow and _lilac_!] [Footnote 6: Or the observer may sweep from [omicron] towards [nu], looking for R about two-fifths of the way from [omicron] to [nu].] [Footnote 7: Here a single period only is taken, to get back to a convenient hour of the evening.] [Footnote 8: Here a single period only is taken, to get back to a convenient hour of the evening.] [Footnote 9: I have constructed a zodiac-chart, which will enable the student to mark in the path of a planet, at any season of the year, from the recorded places in the almanacs.] [Footnote 10: It is convenient to remember that through precession a star near the ecliptic shifts as respects the R.A.and Dec.

lines, through an arc of one degree--or nearly twice the moon's diameter--in about 72 years, all other stars through a less arc.] [Footnote 11: Mercury is best seen when in quadrature to the sun, but _not_ (as I have seen stated) at those quadratures in which he attains his maximum elongation from the sun.