Book,  Chapter

1     II,  XIV| another. Whereas any constant periodical appearance, or alteration
2     II,  XIV|      not by their motion, but periodical appearances. For the freezing
3     II,  XIV|      For without some regular periodical returns, we could not measure
4     II,  XIV|      of the length of certain periodical regular motions, neither
5     II,  XIV|    idea of the length of some periodical known motion, or other interval
6     II,  XIV|      measure by, or any other periodical revolution; but it suffices
7     II,  XIV|     the length of any regular periodical appearances, which we can
8     II,  XIV|       duration, as set out by periodical measures, we come by the
9     II,  XV |      this real existence, and periodical motions of bodies, that