28 PRE-HISTORY IN ESSEX. Shoebury (F. C. J. Spurrell, E.N., iv., 1890, pp. 150-153,. plan). Little remains, but it appears to have had nearly straight sides and rounded corners. There is no inner enclosure. The author refers its construction to the Dane Haesten, A.D. 894. 232 Maldon (E. A. Fitch. E.N., ii., 1888, pp. 234-235), situated to the W. of the town, on the London Road, now very obscure. Enclosed about 22 acres. Considers it to be the Saxon Burg "wrought and getimbred" in A.D. 913 or 920. 233, Birch Castle, near Colchester (H. Laver, E.N., viri., 1894,, p. 204). Situated S.E. of Birch church. The circuit of the earthworks still remains. The date is unknown, but may be Roman. 234 Pictsbury Ramparts (T. V. Holmes, E.N., i., 1887, pp. 79, 82). Situated 3 miles N.W. of Colchester. About 3/4 of the oval of the camp has been levelled for farming. 235 Camulodunum (H.Laver, E.N.,ii., 1888, pp. 120-122). The area of this British Oppidium is bounded on the W. by Grymes Dyke, and on the other sides by the Colne and the Roman River, It was the ancient fastness of the Trinobantes, became the royal town of Cunobelinus, and was subsequently occupied by the Romans (the Colonia of Claudius). Weapons of flint and bronze, urns, and British coins (as also Roman remains) are abundant in the Oppidium. It is the centre of three British roads, some parts of which only survive as foot-paths. Considers that some of the apparent earthworks here are really banked Roman roads. 236 Asheldham (E.N., xvi., 1911, p. 232). Brief note. The camp may be Danish. 237 Harwich (E.N., vi.. 1891, p. 246). Some remains traceable S. of the town. 238 Comprehensive (T. V. Holmes, E.N., x., 1897, pp. 145-158, numerous plans). Compares the earthworks of Essex with those of the Southern Counties, and of Norfolk and Suffolk. 239 [Vide also Section xv.] In general review of the above notices of earthworks, one can only say—how little we know about them ! XIII, Streamlet Dams. Felstead (J. French, E.N., vi., 1892, pp. 34-40). Describes artificial clams. 150 to 200 yards long and 20 feet high, across streamlet valleys ; and sections through their silt.. Many oyster shells and one or two pieces of Roman pottery were found in circumstances which rather suggested con-