Fig. 15. — Section half a mile west of Shottisham Hall.
Upper division, with few shells, 12 feet.
Shelly lower division, 10 feet.
It is apparently this upper division of the Red Crag which reposes on the eroded surface of the Coralline-Crag pit by the roadside between Sudbourne and Iken (fig. 16).
Fig. 16. — Pit by side of road 1-1/4 mile N.N.E. from Sudbourne Church.
a. Light-coloured sands with fine gravel. 3' . Ferruginous and yellow sands. 1. Coralline Crag.
The same feature with relation to the Red Crag is again visible, though not so clearly, at Aldborough (fig. 3 7).
Fig. 17. — Section in Ballast-pit, Aldborough.
3'. Brown sands with few shells and pebbles : upper division, 10 feet.
2. Shelly Red Crag : lower division, 10 feet.
The sandy beds of the upper division of the Red Crag do not
