is the sketch of an oval plan of a town over which is written " modo di canali per la citta " and through the longer axis of it " canale magior " is written with " Tesino " on the prolongation of the canal. J. P. R.]
746.
Let the width of the streets be equal to the average height of the houses.
747.
The main underground channel does not receive turbid water, but that water runs in the ditches outside the town with four mills at the entrance and four at the outlet; and this may be done by damming the water above Romorantin.
[11]There should be fountains made in each piazza[13].
[Footnote: In the original this text comes immediately after the passage given as No. 744. The remainder of the writing on the same page refers