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544 very many formed from rolled chalk, mixed with the other constituents. These are less abundant in the upper part of the deposit, which is there of considerable thickness. I am not aware of the exact levels having been taken at either place, but the surface of the ground is probably from 40 to 50 feet above the level of the river. The gravel beds are in places as much as 14 or 15 feet in thickness. Mammalian remains are scarce, but teeth and portions of tusk of Elephas primigenius have been found at Rampart Hill, and the core of the horn of an ox, and teeth of horse, and bones and teeth of elephant, at Warren Hill.

Fig. 419.—Westley, near Bury St. Edmunds.

Up to the present time the search for remains of testacea in these beds has proved unsuccessful.

Not only have the worked flints been discovered in considerable numbers, but Canon Greenwell, F.R.S., has found in the gravel at Warren Hill, several quartzite pebbles bearing evident marks of