10 A MEDIAEVAL CITY that obtained within the city walls. For the same purpose a bell was rung at St. Michael's, Ouse Bridge. There were a few buildings along the high-roads just outside the great entrances, the Bars. Besides the few hovels and huts there were hospitals for travellers. There were four hospitals for lepers, the most wretched of all the sufferers from mediaeval lack of cleanliness. Most of the streets were mere alleys, passages between houses and groups of buildings. They were very narrow and often the sky could hardly be seen from them because of the overhanging upper storeys of the buildings along each side. Goods in the Middle Ages and right down to the nineteenth century were carried in towns by hand. Carriages and waggons and carts were not very numerous and would have no need to proceed beyond the main streets and the open squares. If men must journey off their own feet, they rode horses. Pack-horses were used regularly to carry goods, where nowadays a horse or, more probably, a steam or motor engine would easily pull the goods conveniently placed on a cart or lorry. The paving of rough cobbles and ample mud was distinctly poor. There was no adequate drainage ; in fact there was very little attempt at any beyond the provision of gutters down the middle or at the sides of the streets. There were no regular street lights, and pavements, when they existed, were too meagre to be of much use to pedestrians. Streets led to the two open market-places of this mediaeval city. Both of them (Thursday Market, now called St. Sampson's Square, and Pavement, which was a broad street with a market cross near one end) were used as markets, but for different kinds of produce. Some markets, such as the