The level of this pit is very little above that of the river. There is no superposition with any other bed ; but I consider there are indications of the Chillesford Clay on higher ground between it and Wangford.
There is another pit one mile south of Wangford, again without superposition and but little above the level of the river. It presents very similar features to the pit on Thorpe common, the beds being light-coloured and pebbly. The common shells are Cardium edule, Mya arenaria, Littorina littorea, Purpura lapillus, and a few others.
Passing thence to the N.E., we find in the cliff at Easton Bavent, from one to two miles north of Southwold, a section of much interest, as it shows distinctly the relation of the Chillesford Clay to the so- called Mammaliferous or Norwich Crag. The section some years since was remarkably clear, and presented the following features (fig. 26).
Fig. 26.— Cliff at Easton Bavent.
a. Light-coloured sand and shingle.
3. Grey laminated clay, 4 to 6 feet.
3'. Sand, pebbles and shells, 3 feet.
Along part of the cliff I found no organic remains in the clay ; but at the more northern end of the cliff I met with them at one spot in considerable abundance — many with double valves and in the position in which they lived. Leda myalis was common. The following is a list made on a first and on a subsequent visit with Mr. Jeffreys : —
Fossils from the Chillesford Clay (3, fig. 26), Easton Bavent.
Astarte compressa. Tellina lata.
Cardita scalaris. — obliqua.
Cardium edule.
Corbula. Buccinum undatum.
Cyprina islandica. Littorina littorea.
Leda myalis. Natica cirriformis.
Lucina borealis. Purpura lapillus.
Mactra ovalis. Turritella communis.
— subtruncata.
Mytilus edulis. One leaf-impression.
Nucula Cobboldiae.
while in the pebbly sands which here underlie the Chillesford Clay, sometimes in immediate contact with it, and at other times separated by 2 or 3 feet of light-coloured sand, we have found : —
Fossils from the Crag Bed (3', fig. 26), Easton Bavent (Southwold).
(See also the general list.)
Abra obovalis. Astarte borealis.
Artemis lincta. — compressa.
