(M577) From many considerations it appears that most of these plots were rectangular, but it is curious to note that many plans of houses and fields exist which show that this was not always the case. Perhaps it was the irregularity of the outline which made plans necessary and they may be an indirect witness to the rarity of such a feature. (M578) As a rule the private houses seem to have been small and to have had a few small rooms. The palaces, or mansions of the great, had much more extensive conveniences. One reads of several specially defined rooms, but their names do not as a rule tell us much of their use. Wash-houses, shops, stables, granaries, and vacant plots, as well as gardens and orchards, are often attached. Apparently one had to leave the house to enter these. The houses were built of brick and their roofs were supported by strong beams. In many plans, while the doorways for internal communication are carefully marked, there seems to be no access from the street. Perhaps this is a peculiarity of the architect’s ideas of a plan, the door to the street being understood. At any rate, doors, bolts, posts, and a lintel are frequently named. These were often put in by the tenant and, like the beams, taken away by him. A door might be pledged alone. But it is possible that some houses had no door proper, being entered by steps leading to the roof. This may be the explanation of the oft-mentioned _mûṣû_ or right of way out, either between, through, or over, other house property. When a house had other houses touching it on each of four sides, something of the kind was necessary. Probably the house did not usually have an upper story; but, perhaps, as a remarkable exception, an “upper house” is occasionally mentioned. There is reason to think that some were in the form of a quadrangle, around an inner court; as there are wells, or fountains, mentioned as being “within the house.” In some parts of the city, at any rate, the block of buildings was continuous. But there were many streets, and canals also, in the cities. The streets, _suḳê_, were as a rule only narrow lanes or passages. As shown by the excavations at Nippur, houses stood for a long time. When first used, the floors were above the street level, but after the footpaths had been some time in use, they rose to the level of, and finally above, the floor, so that there were steps leading down into the house.(602) It seems evident that great efforts were made to provide drains for the foundations; and perhaps other sanitary appliances were found in the better class of houses. But we must await more extensive exploration, not necessarily in the more important mounds, before we are able to give a clear account of an ancient Babylonian house.