Lawyers had more work with the new laws passed to replace the canons of the church. They played an important role in town government and many became wealthy. They acquired town houses in addition to their rural estates. The walls of the towns were manned by the citizens themselves, with police and watchmen at their disposal. In inns, travelers slept ten to a bed and there were many fleas and an occasional rat or mouse running through the rushes strewn on the floor. The inn provided a bed and ale, but travelers brought their own food. Each slept with his purse under his pillow. In markets, sellers set up booths for their wares. They sold grain for making oatmeal or for sowing one's own ground. Wine, butter, cheese, fish, chicken, and candles could also be bought. Butchers bought killed sheep, lambs, calves, and pigs to cut up for selling. Tanned leather was sold to girdle-makers and shoemakers. Goods bought in markets were presumed not to be stolen, so that a purchaser could not be dispossessed of goods bought unless he had knowledge that they were stolen. The ruling group of the towns came to be composed mostly of merchants, manufacturers, lawyers, and physicians. Some townswomen were independent traders. The governed class contained small master craftsmen and journeyman artisans, small traders, and dependent servants. The major streets of London were paved with stone, with a channel in the middle. More water conduits from hills, heaths, and springs were built to provide the citizens of London with more water. The idea of competition appeared. Each man sought to be richer than his neighbors. The cloth, mining, iron, and woodcraft industries employed full-time workers on wages. Land held in common was partitioned. There were leases of mansion houses, smaller dwelling houses, houses with a wharf having a crane, houses with a timber yard, houses with a garden, houses with a shed, shops, warehouses, cellars, and stables. Land with a dye-house or a brew-house were devised by will along with their dying or brewing implements. There were dairies making butter and cheese. The knights had 70% of the land, the nobles 10%, the church 10%, and the King 5%. Citizens paid taxes to the King amounting to one tenth of their annual income from land or wages. The national government was much centralized and had full- time workers on wages. A national commission of sewers continually surveyed walls, ditches, banks, gutters, sewers, ponds, bridges, rivers, streams, mills, locks, trenches, fish-breeding ponds, and flood-gates. When low places were threatened with flooding, it hired laborers, bought timber, and hired carts with horses or oxen for necessary work. Mayors of cities repaired water conduits and pipes under the ground in their cities. The organ and harp, precursor to the piano, were played.