Preliminary Notice: Types of Clactonian Implements at Swanscombe

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Abstract
Since my paper on the Clactonian Industry at Swanscombe was read in 1929, I have obtained many more implements from Barnfield Pit (the one there described) and also a large collection from Rickson's Farm Pit. The lower gravel at Rickson's Farm Pit has yielded the same culture as the lower gravel in Barnneld Pit, and it underlies a shell-bed containing I heodoxus cantianus (Ken. and B. B. Wood.), which is succeeded by a gravel containing well finished St. Acheul hand-axes in both places. The Acheulian tools from Rickson's Farm Pit differ somewhat from those obtained in Barnfield Pit in that there are fewer of the pear-shaped, pointed implements. The usual type in the former pit is thinner, more ovate, and frequently with a pronounced ‘twist’ of the reversed S kind.

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