=Sandwich=, one of harbours on northern shore of Straits, 35. =Scilly Isles=, their identification with Cassiterides doubtful, 20. '=Second Crossing=,' passage of Channel from Cotentin to Wight so called, 46; its advantages, 48; map of, 49; high land marking either shore, 50-51; great advantage of its English harbours, 55; the direct route to the centre at Salisbury Plain, 56; principal cause of development of Winchester, _ibid._ =Seale=, church of, passage of Old Road as near as possible to south of, 110; passed, 157. =Seine=, estuary of, its importance in production of Second Crossing, 48, 49 (and map). =Severn=, valley of, importance as metallic centre, 20. =Shalford=, Becket's fair at, 158; passage of Wey at, discussed, 164-167 (and map). =Shere=, church of, passage of Old Road to south of, doubtful, 110; probable track of Old Road through, described, 175. =Shoelands=, passed on journey, 157; significance of name, 157. =Shrines=, of Winchester and Canterbury compared, 71; of St. Thomas à Becket. See '=St Thomas=.' =Snodland=, church of, passage of Old Road to south of, 110; crossing of Medway at, discussed, 248-253 (and map), 236. =South Country=, originally wealthiest portion of the island, 23, 24. =Southampton Water, Solent, and Spithead=, regarded as one harbour, north of 'Second Crossing,' 55. =South Downs=, their position in scheme of prehistoric roads, 16. =Stane Street=, example of evidences of a Roman road, 74; disuse in Middle Ages, 87; crosses Mole at Burford Bridge, 185. =Stoke=, meaning of, in place-names, 127. =Stonehenge=, and Avebury, mark convergence of prehistoric roads, 16; original starting-point of Old Road, 27. =Stour, River=, importance of in development of Canterbury, 42, 43; compared to Itchen, 68, 69; source in Lenham, 259; entry of Old Road into valley of, 260, 262. =Straits of Dover=, importance of, to England alluded to, 17; discussed at length, 29-40; complexity of tides in, 32; opposite shores visible, 32; original harbours of, 35; original crossing of, 37-39. =Street=, =Stane=, =Ermine=, =Watling=. See under these names. =Street=, in place-names indicates passage of a road, 136 (and note 2). =Swegen=, his march through the Worthies, 126. =Thomas à Becket, St.= See '=St. Thomas=.' =Ticino=, example of advantage of partial isolation, 30. =Tide=, multiplicity of harbours due to their complexity, 31-32; in Straits of Dover, 37-39; limit of, on Stour, 43; and on Itchen, forming Canterbury and Winchester, 68; political importance of limit of, _e.g._ at Snodland, 252.