bold = Main text
  Book, Chapter                                  grey = Comment text

1     I, 22|         them certain (events), from calculations and numbers by the Pythagorean
2    IV, 9 |              IX. FURTHER ASTRONOMIC CALCULATIONS.~The mutual distances of
3    IV, 12|    confidence in this (astronomer's calculations), let him by measuring be
4    IV, 14| ARITHMETICIANS; PREDICTIONS THROUGH CALCULATIONS; NUMERICAL ROOTS; TRANSFERENCE
5    IV, 14|           they prophesy by means of calculations and numbers, and elements
6    IV, 14|            then, that conduct their calculations according to the rule of
7    IV, 14|            hand, (who conduct their calculations) according to the rule of
8    IV, 43|         instance, they pursue their calculations thus: monad--that we may