_To find the Amplitudes, Meridian Altitudes, and times of Rising,
Culminating, and Setting, of the Sun, Moon, and Planets._
[Sidenote: It’s use.]
Turn the Globe round eastward, or according to the order of Signs; and
as the eastern edge of the Horizon comes right against the Sun, Moon, or
any Planet, the Hour Index will shew the time of it’s rising; and the
inner edge of the Ecliptic will cut it’s rising Amplitude in the
Horizon. Turn on, and as the Quadrant of Altitude comes right against
the Sun, Moon, or Planets, the Ecliptic cuts their meridian Altitudes in
the Quadrant, and the Hour Index shews the times of their coming to the
Meridian. Continue turning, and as the western edge of the Horizon comes
right against the Sun, Moon, or Planets, their setting Amplitudes are
cut in the Horizon by the Ecliptic; and the times of their setting are
shewn by the Index on the Hour Circle.