winding slope, of a hill side broken into hillocks. The low Colline upon which it stands, is almost insulated, the town being very near the fork of the rivers Turno and Landro, so that it is situated at the junction of three small valleys, all diverging from the town: the side of the Colline next the Turno to the N.E. is the steepest. (See Photog. No. 292, Coll. Roy. Soc.)
The summit of the town is, by estimation, from 350 to 400 feet above the river beds below. The town at top lies on bare limestone, the beds, so far as any can be traced, seem to run south and west, and dip to the south. At a very few feet vertically below the summit level down the slopes, clays begin to cover the limestone, and lie in very thick masses, increasing in thickness to the valley bottoms.
