I find the Rigning proceeds over the common, by the mill and brook at the west end of Derby, and falls into a valley, which gives a gentle descent to the river side, every where else steep, over-against the old city: this, no doubt, is the reason why the Romans placed it in that very spot. The river is very broad and deep, equal to the Medway at Maidstone; the sides steep, so that a ford was not at all practicable: it is six or seven foot deep here at least. Darley slade is the name of the valley where the descent of the road is: they call the road the Foss hereabouts; which shows that no more is meant by the name, than that it is an artificial work: the Foss and Rigning therefore are but synonymous terms. A little up the river, beyond the city, was the bridge: in time of a frost, when there is clear ice, they can see the foundation of the piers very plainly, and a piece of one is still left. Thence the road proceeds over the pasture, where, after a fortnight’s dry weather in summer, they can distinguish it by the parched grass: it goes up the valley north of Bradsal, by Priory Hall, so to Chesterfield. Another such way, they say, went up the hill directly from the street of the city by Chadsden: part of it has been dug up near the town by the Crown ale-house, and its ridge is still visible. In the pasture over-against the house two square Roman wells were opened by a violent flood in Sir Simon Degg’s time: they were made of very broad flat stones, let into one another, and were paved at bottom with bricks set edge-wise, as they tell me. Roman coins are found in every road, foot-path, and ditch, about the town: they never dig in the gardens, or pastures, but they find them, together with rings and other antiquities. A man who kept the Duke’s-head ale-house found seven score at a time in digging a hole to set a post in but they are all dispersed. The city of _Derventio_ is in possession of the deanery of Lincoln: the city walls were dug up in great quantities to mend the ways with but they were so strong, they were forced to blow them up with gunpowder. There is much painted glass in Morley church, a mile beyond Bradsal, and tombs of the Sacheverels. A piece of the wall of _Derventio_ is left under Mr. Hodgkinson’s garden-house. I saw a piece of a vase of coral-coloured earth found there, also several pieces of pillars; and they meet with foundations wherever they dig. Mrs. Hodgkinson showed us a gold Anastasius, _victoria aug. g. g._ said to be found near Leicester and a silver Arcadius. I saw a large brass coin, found at Derventio, _Diva Faustina_. I find this city is exactly of the same dimensions as _Manduessedum_, 120 paces long, 80 broad.