Book, Paragraph

1   I,  4|       upwards, and under these circumstances an object always moves obliquely.
2   I,  6|      it small. For under these circumstances there is nothing to prevent
3   I,  8|       mirrors. But under these circumstances it is impossible for our
4  II,  7|        gives no account of the circumstances attendant on earthquakes:
5  II,  8|      the most important of the circumstances attendant on their appearance.~
6 III,  1|    collides with another under circumstances like those found when a
7 III,  2| describe the phenomena and the circumstances in which each of them occurs.
8 III,  6|    sight reaches the sun under circumstances like those which we described,