Now, if you look at the present scheme of roads surrounding this original Roman core they look at first as though they had no connection with it, but when you examine them in detail the way in which they grew up out of the Roman road is clear. Every deflection can be accounted for, and the development of the local systems from the original continuous backbone becomes evident. [Illustration: _Part II_, Sketch XI] First you have all Sussex south of Pulborough Marsh, and again south of Alfoldean Bridge, isolated. What happens? There remained no reason for using the Stane Street as a continuous line. It now led nowhere. When it meets with its first great obstacle going north, the woods near Eartham, it makes for the next centre of population--Petworth, where there was a fortified post going back to some very early time. The wood deflects the road towards Duncton Hill (I have quoted this example in my section on vegetation in the earlier part of this essay). Beyond Petworth it had little function, so this first ten miles of the Stane Street becomes the parent of the local Chichester-Petworth road which grew up out of it, leaving a gap where the woods intervened. Next you must note the local roads beyond this gap. Pulborough Bridge probably survived, but the causeway could not be kept up, or was ill kept up. In its original line, when it served the camp at Hardham, it ran over a wide part of the marsh. In the Dark Ages men picked their way over the narrowest part of the marsh and then followed the hard bank above the Arun-flooded levels, linking up the villages as far as Bignor. But there the use of the road ended. The “potential” was from Pulborough to the nearest seaport, which was then Arundel. And all that the Roman road did in this section was to throw out this bow or curve of lateral road eastward between Pulborough and Bignor, the line of main local travel being diverted from Bury over Arundel Hill and so seaward.