It is by the size and importance of this bay that the old consequence of Amalfi should be measured rather than by what stood upon the city site itself. The historian Hallam, when he visited this coast, doubted the tradition of commercial greatness, remarking that the nature of the ground and the proximity of the mountains to the sea can never have admitted the growth of a city whose transactions were really vast. He does not seem to have realised that Amalfi was a group of cities, of which, perhaps, no one was very large, but each had its own vigorous life, each one contributed some distinct element to the strength and valour of the commonwealth. Doubtless, also, all vied together to promote the glory of the whole. After crossing Capo d'Orso the road descends, and its beauty decreases, until one sees Cetara, the old cliff town which was the limit of the Duchy of Amalfi, and for many years a nest of Saracens; and further on Vietri, standing quaint and beautiful upon the sea. At Vietri we must turn inland, for though the greater beauty of the sea coast has led us away from the high valley of La Cava, yet the ancient abbey on the mountain-side above that summer resort is famous by too many titles for us to pass it by. A pleasant road leads inland from the pretty little port. Ere long the highway up the valley is abandoned for a winding lane, which climbs and climbs till it comes out at last on a small white village, nestling under the slopes of higher hills. The air is keen upon this lofty ground. Spring has not yet advanced so far as on the coast, but all the brown coppice on the mountain slopes is flushing into green, and the serrated ridge that jags the skyline is lit and obscured by flying light and shadow.