In our route we shall pass several brick-pits dug into a stiff brown clay or ordinary brick-earth, which must in no way be mistaken for gault, as this fresh-water or marshy stratum, for such the abundance in its lower part of the small white shells of Helix, Succinea oblonga, and Pupa prove it to be, skirts the chalk downs for many miles, apparently into Surrey. At the time when it is extensively dug for brick-making, bones of Bos primigenius, Cervus elephus, Bos urus, and horse are met with. The specimen figured is from one of these pits belonging to Mr. Kingsnorth, of Broadmead.