Several individuals, as a rule, would club together to hire one of these boats and freight it with a suitable cargo.* The body of the boat was very light, being made of osier or willow covered with skins sewn together; a layer of straw was spread on the bottom, on which were piled the bales or chests, which were again protected by a rough thatch of straw. The crew was composed of two oarsmen at least, and sometimes a few donkeys: the merchants then pursued their way up stream till they had disposed of their cargo, and taken in a sufficient freight for their return voyage. The dangers, though apparently not so great as those by the land route, were not the less real. The boat was liable to sink or run aground near the bank, the dwellers in the neighbourhood of the river might intercept it and pillage its contents, a war might break out between two contiguous kingdoms and suspend all commerce: the merchants’ career continually vacillated between servitude, death, and fortune. * The payment demanded was something considerable: the only contract which I know of existing for such a transaction is of the time of Darius I., and exacts a silver shekel per day for the hire of boat and crew. Business carried on at home in the towns was seldom the means of enriching a man, and sometimes scarcely afforded him a means of livelihood. Rent was high for those who had not a house of their own; the least they could expect to pay was half a silver shekel per annum, but the average price was a whole shekel. On taking possession they paid a deposit which sometimes amounted to one-third of the whole sum, the remainder being due at the end of the year. The leases lasted, as a rule, merely a twelvemonth, though sometimes they were extended for terms of greater length, such as two, three, or even eight years. The cost of repairs and of keeping the house in good condition fell usually upon the lessee, who was also allowed to build upon the land he had leased, in which case it was declared free of all charges for a period of about ten years, but the house, and, as a rule, all he had built, then reverted to the landlord. Most possessors of shops made their own goods for sale, assisted by slaves or free apprentices. Every workman taught his own trade to his children, and these in their turn would instruct theirs; families which had an hereditary profession, or from generation to generation had gathered bands of workmen about them, formed themselves into various guilds, or, to use the customary term, into tribes, governed by chiefs and following specified customs. A workman belonged to the tribe of the weavers, or of the blacksmiths, or of the corn-merchants, and the description of an individual would not have been considered as sufficiently exact, if the designation of his tribe were not inserted after his name in addition to his paternal affiliation. The organization was like that of Egypt, but more fully developed.