PLEISTOCENE GEOLOGY OF THE THAMES VALLEY.
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that the residue is as productive as any of the famous parts that
are gone we hope to show in the sequel.
Orsett Road Section (Fig. 1). On the right hand side of the
Orsett Road, between Grays and Little Thurrock, is situate
what is probably the most interesting and important section of
the Middle Terrace brickearths exposed in this district. Its
interest lies in the fact of its being, perhaps, the last section of
the famous fossiliferous beds of Grays that will ever be seen.
Its importance lies in the great advance in our knowledge of the
Pleistocene fauna of the Thames Valley which it has yielded to
our researches. The section was first discovered by one of us
in company with Dr. F. Corner, F.G.S., in April, 1899, and
since that date we have systematically studied it and its fossil
contents.
The following beds were exposed :—
Fig. 1. Section in Pit at Orsett Road, Grays. (For explanation see text).