To-day the Great Eastern Railway crosses the Cam, or Granta, near a Roman station. Great Chesterford is the ancient Iceanum, once thought to be Camboricum. The foundations of walls enclosing about 50 acres are known to have existed a century and a half ago. The site was thoroughly explored between 1846 and 1848, under the superintendence of the Hon. R. C. Neville, afterwards Lord Braybrooke. Many Roman remains were recovered and are preserved at his seat, Audley End--one of the finest examples of Jacobean architecture now remaining in England. In this neighbourhood, at Heydon, two miles N.W. of Chrishall, and in the extreme angle of Essex, there was discovered, in 1848, a chamber cut in the chalk. It contained a sort of altar and an abundance of Roman fibulae. Its purpose has not been clearly made out. CHICHESTER. This city is built on a Roman site, near a line of road now known as Stane Street. It is usually identified with Regnum, a town of the Belgae, mentioned in the Antonine Itinerary. A slab of grey Sussex marble, now at Goodwood, discovered in 1713, on the site of the present Council House, bears an inscription which gives rise to an hypothesis which represents Chichester as the seat of the native king, Cogidubnus, mentioned by Tacitus as possessing independent authority. It is further conjectured that this king was the father of Claudia (2 Tim. iv, 21), whose husband seems to have been Pudens, mentioned in the same verse (traditionally said to have been a Roman Senator, who became a Governor of Britain). Cogidubnus appears to have taken to himself the more euphonious name of his imperial patron, Tiberius Claudius, hence, too, Claudia. It would appear from this slab that Chichester was the abode of a considerable number of craftsmen, and that they erected a temple to Neptune and Minerva under the patronage of a certain Pudens--in his unregenerate days, doubtless, if this be the same as St. Paul's Pudens. In the early Saxon occupation, the town was destroyed by one Ella, but restored by Cissa, hence Cissa's Castra, or Chichester; hence, also, the Bishop's signature, Cicestriensis. CIRENCESTER, or CORININUM.--In Gloucestershire, 93 miles W.N.W. of London, on the river Churn, a tributary of the Thames. This was a flourishing Romano-British town, a cavalry post, also a civilian city. At Chedworth, 7 miles, N.E., there has been unearthed one of the most interesting Roman villas in England. COLCHESTER.--51 miles N.E. of London, on the right bank of the Colne, 12 miles from the sea. Colonia Victricensis, Camolodunum, or Camulodunum. (This colony is on the River Colne, even as another stream of the same name flows by the colony of Verulamium).