Book, Paragraph

 1 III,  2|    any segment greater than a semicircle. At sunset and sunrise the
 2 III,  5|       a circle greater than a semicircle. The consideration of the
 3 III,  5|    will always be less than a semicircle, and it will be smallest
 4 III,  5|       and K to a point on the semicircle A are in a certain ratio
 5 III,  5|      to another point on that semicircle can have the same ratio.
 6 III,  5|       different points in the semicircle will have the same ratio
 7 III,  5|     impossible. If, then, the semicircle A be revolved about the
 8 III,  5|   horizon will be less than a semicircle. For YXM was a semicircle
 9 III,  5|     semicircle. For YXM was a semicircle and it has now been cut
10 III,  5| course are all greater than a semicircle, and go on increasing, while