A coloured band immediately below indicated by the
variations of tint the character of the coming weather. This band
stretched right across the face; below it were figures indicating the
day of the year. The central portion of the face was occupied by a
larger circle, half-green and half-black; the former portion
representing the colour of the daylight sky, the latter emblematic of
night. On this circle the Sun and the planets were represented by
figures whose movement showed exactly the actual place of each in the
celestial sphere. The two Moons were also figured, their phases and
position at each moment being accurately presented to the eye. Around
this circle was a narrow band divided into strips of different length
of various colours, each representing one of the peculiar divisions of
the Martial day; that point which came under the golden indicator
showing the _zyda_ and the exact moment of the _zyda_, while the
movement of the inner circle fixed with equal accuracy the period of
day or night. Below were other circles from which the observer could
learn the amount of moisture in the atmosphere, the intensity of the
sunlight, and the electric tension at the moment.
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