Implementiferous Sections at Wolvercote (Oxfordshire)

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Abstract
A section at Wolvercote, a village 1½miles north of Oxford, has been open for the past ten years, and-will reward study by geologists interested in the phenomena of Pleistocene time, whether their object is to study the ehanges of laud and elimate, or whether, as was the ease with the writer, they seek for some detail in the fragmentary story of Palælithic Man. The section eontains four parts, which may thus be named in the order of their age: (1)the Oxford Clay beneath, which is largely quarried for bricks; (2)an old surface, in which pits or troughs chiefly filled with gravel are seen enveloped in weathered clay; (3) a river-bed, containing gravel at the base, and layers of variouslyeoloured clay above; and (4)a surface-layer of humus over all, about 2 feet thick, containing h'eolithie remains. The relation which the various paris bear one to the other is also plain. The old Pleistoeene surface lies upon eroded Oxford Clay; the river-bed has worn a channel in the old Pleistocene surface; between the river-bed and the Neolithic surface is the trail usually named ‘warp,’ which, however, is not discussed in this paper. The river-bed first attracted my attention : it lies on the summit of land between the Isis and Cherwell, at an equal height above either river. There seems to be no reason to doubt that it represents the deposits of a stream whieh contained the united waters of both rivers, at a time before they became

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