Again, according to another way of indicating, the number 120 consists of four numbers—of one triangular, 15; of another, a square, 25; of a third, a pentagon, 35; and of a fourth, a hexagon, 45. The 5 is taken according to the same ratio in each mode. For in triangular numbers, from the unity 5 comes 15; and in squares, 25; and of those in succession, proportionally. Now 25, which is the number 5 from unity, is said to be the symbol of the Levitical tribe. And the number 35 depends also on the arithmetic, geometric, and harmonic scale of doubles—6, 8, 9, 12; the addition of which makes 35. In these days, the Jews say that seven months’ children are formed. And the number 45 depends on the scale of triples—6, 9, 12, 18—the addition of which makes 45; and similarly, in these days they say that nine months’ children are formed.