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| | The Chalky and other Post-Tertiary Clays of Eastern England |
 | | I prefer to call it the Chalky Clay, as Searles Wood named it, rather than the Chalky Boulder-clay, because boulders in the true sense of the word, such as characterize the genuine Boulder-clays of North Britain, are infrequent in it. |
 | | The term Chalky applied to this clay depends on the fact that it is more or less crowded with chalk rubble and chalk fragments of various sizes, and that it has also incorporated in it a considerable quantity of chalk dust, whence its colour and superficial appearance. |
 | | This makes it clear that the Chalky Clay, which occupies the larger part of the interior of those counties, did not move westward from the seaboard, but came from the north or north-west, whence the chalk fragments and the clay itself were derived. |
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