Book, Paragraph

 1   I,  4 |      of the appearance in the sky of burning flames and of
 2   I,  4 |     night and by day when the sky is clear. They are thrown
 3   I,  5 |  appearances that form in the sky: "chasms" for instance and "
 4   I,  6 |       frosty weather when the sky was clear, in the archonship
 5   I,  6 |      over a third part of the sky like a leap, so that people
 6   I,  8 |     but if you look up to the sky the point is clear. For
 7   I,  10| hoar-frost are found when the sky is clear and there is no
 8   I,  10|      not be raised unless the sky were clear, and if a wind
 9  II,  6 |       hot. Caecias covers the sky with heavy clouds, Lips
10  II,  9 |   when it is cloudy. When the sky is clear there is no lightning:
11 III,  2 |       opposite quarter of the sky. They are not seen at night
12 III,  4 |      positions as that in the sky, but its colour is more
13 III,  6 |       is in the middle of the sky, for then the line of vision