WITHAM (Fig. 4).--There are some remains of a _burh_ here which are very remarkable, as they show an inner enclosure within the outer one. They have been carefully surveyed by Mr F. C. J. Spurrell, who has published a plan of them.[93] Each enclosure formed roughly a square with much-rounded corners. The ditch round the outer work was 30 feet wide; the inner work was not ditched. The area enclosed by the outer bank was 26-1/4 acres, an enclosure much too large for a castle; the area of the inner enclosure was 9-1/2 acres. As far as is at present known, Witham is the only instance we have of an Anglo-Saxon earthwork which has a double enclosure.[94] Witham is not mentioned as a borough in Domesday Book, but the fact that it had a mint in the days of Hardicanute shows that it maintained its borough rights for more than a hundred years. The name Chipping Hill points to a market within the borough. BUCKINGHAM is another case where a _burh_ was built on both sides of the river, and as at Hertford, there was only one motte, site of the castle of the Norman Giffards, now almost obliterated. The river Ouse here makes a long narrow loop to the south-west, within which stands the town, and, without doubt, this would be the site of Edward's borough. No trace is left of the second borough on the other side of the river. Buckingham is one of the boroughs of Domesday. BEDFORD has had a motte and a Norman castle on the north side of the Ouse; but this was not the site of Edward's borough, which the _Chronicle_ tells us was placed on the south side of that river. On the south side an ancient ditch, 10 or 12 feet broad, with some traces of an inner rampart, semicircular in plan, but with a square extension, is still visible, and fills with water at flood times.[95] This is very likely to be the ditch of Edward's borough. Both at Bedford and Buckingham the _Chronicle_ states that Edward spent four weeks in building the _burh_. Mediæval numbers must never be taken as precise; but the disproportion between four weeks and eight days, the space often given for the building of an early Norman castle, corresponds very well to the difference between the time needed to throw up the bank and stockade of a town, and that needed for the building of an earthen and wooden castle. MALDON.--Only one angle of the earthen bank of Edward's borough remains now, but Gough states that it was an oblong camp enclosing about 22 acres.[96] It had rounded corners and a very wide ditch, with a bank on both scarp and counterscarp. Maldon was a borough at Domesday;[97] the king had a hall there, but there was never any castle, nor is there any trace of a motte.