ΙΙ., Chapter 53

Δεῖ οὖν εἰδέναι ἐπὶ τῆς μετρήσεως τῶν ὁρίων καὶ λαμβάνειν τὸ ἐμβαδὸν τοῦ παντὸς καὶ ποιεῖν ἐπὶ τὸ ὕψος ἤτοι ἐπὶ τὸ βάθος, καὶ ὅτε εὕρῃς τὸ στερεὸν τοῦ παντὸς τῆς ἀποθέσεως τοῦ σίτου, τότε πρὸς τὸν μόδιον ποίει τὰ μέτρα οὕτως·