ly interpreted the Giant's
Shoulder--_ibt-al-jauza_. The words, however, really signify, "the
armpit of the central one," Orion being so named because he is divided
centrally by the equator.]

[Footnote 3: I have never been able to see more than four with a
3-3/4-inch aperture. I give a view of the trapezium as seen with an
8-inch equatorial.]

[Footnote 4: Sir W. Herschel several times saw [epsilon] Lyrae as a
double. Bessel also relates that when he was a lad of thirteen he could
see this star double. 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. This will appear singular, because
the maximum elongation is about 27 deg., the minimum only about 18 deg.. But it
happens that in our northern latitudes Mercury is always _south_ of the
sun when he attains his maximum elongation, and this fact exercises a
more important effect than the mere amount of elongation.]

[Footnote 12: It does not seem to me that the difficulty of detecting
Mercury is due to the difficulty "of identifying it amongst the
surrounding stars, durin