Most of London was confined within the city wall. There were orchards and gardens both inside and outside the walls, and fields outside. Flower gardens and nurseries came into existence. No part of the city was more than a ten minute walk to the fields. Some wealthy merchants had four story mansions or country houses outside the city walls. Goldsmiths' Row was replete with four story houses. A few wealthy merchants became money-lenders for interest, despite the law to the contrary. The mayor of London was typically a rich merchant prince. Each trade occupied its own section of the town and every shop had its own signboard, for instance, hat and cap sellers, cloth sellers, grocers, butchers, cooks, taverns, and book-sellers. Many of the London wards were associated with a craft, such as Candlewick Ward, Bread St. Ward, Vintry Ward, and Cordwainer Ward. Some wards were associated with their location in the city, such as Bridge Ward, Tower Ward, Aldgate Ward, Queenhithe Ward, and Billingsgate Ward. People dwelled at the back or on the second floor of their shops. In the back yard, they grew vegetables such as melons, carrots, turnips, cabbages, pumpkins, parsnips, and cucumbers; herbs; and kept a pig. Hyde Park was the Queen's hunting ground. London had a small zoo of ten animals, including a lion, tiger, lynx, and wolf. Life in London was lived in the open air in the streets. The merchant transacted business agreements and the lawyer saw his clients in the street or at certain pillars at St. Paul's Church, where there was a market for all kinds of goods and services. Some gentlemen had offices distant from their dwelling houses such as attorneys, who had a good income from trade disputes and claims to land, which often changed hands. Plays and recreation also occurred in the streets, such as performances by dancers, musicians, jugglers, clowns, tumblers, magicians, and men who swallowed fire. The churches were continuously open and used by trades and peddlers, including tailors and letter-writers. Water carriers carried water in wood vessels on a shoulder from the Thames River or its conduits to the inhabitants three gallons at a time. Soldiers, adventurers, physicians, apprentices, prostitutes, and cooks were all distinguishable by their appearances. An ordinance required apprentices to wear long blue gowns and white breeches with stockings, with no ornamentation of silk, lace, gold or silver and no jewelry. They could wear a meat knife, but not a sword or dagger. Apprentices lived with their masters and worked from 6 or 7 a.m. to 9 p.m. Some people knitted wool caps as they walked to sell when finished. There were sections of town for booksellers, butchers, brewers, hosiers, shoemakers, curriers, cooks, poulters, bow makers, textwriters, pattenmakers, and horse and oxen sellers. Large merchant companies had great halls for trade, such as the mercers, grocers, drapers, fishmongers, and goldsmiths.