To form a proper conception of the ceremonials of the Friday-prayers, it is necessary to have some idea of the interior of a mosque. A mosque in which a congregation assembles to perform the Friday-prayers is called “gámë’.” The mosques of Cairo are so numerous, that none of them is inconveniently crowded on the Friday; and some of them are so large as to occupy spaces three or four hundred feet square. They are mostly built of stone, the alternate courses of which are generally coloured externally red and white. Most commonly a large mosque consists of porticoes surrounding a square open court, in the centre of which is a tank or a fountain for ablution. One side of the building faces the direction of Mekkeh, and the portico on this side, being the principal place of prayer, is more spacious than those on the three other sides of the court: it generally has two or more rows of columns, forming so many aisles, parallel with the exterior wall. In some cases, this portico, like the other three, is open to the court; in other cases, it is separated from the court by partitions of wood, connecting the front row of columns. In the centre of its exterior wall is the mehráb (or niche) which marks the direction of Mekkeh; and to the right of this is the “mimbar” (or pulpit). Opposite the mehráb, in the fore part of the portico, or in its central part, there is generally a platform (called “dikkeh”), surrounded by a parapet, and supported by small columns; and by it, or before it, are one or two seats, having a kind of desk to bear a volume of the Kur-án, from which a chapter is read to the congregation. The walls are generally quite plain, being simply white-washed; but in some mosques the lower part of the wall of the place of prayer is lined with coloured marbles, and the other part ornamented with various devices executed in stucco, but mostly with texts of the Kur-án (which form long friezes, having a pleasing effect), and never with the representation of anything that has life. The pavement is covered with matting, and the rich and poor pray side by side; the man of rank or wealth enjoying no peculiar distinction or comfort, unless (which is sometimes the case) he have a prayer-carpet brought by his servant, and spread for him.[137] The Prophet did not forbid _women_ to attend public prayers in a mosque, but pronounced it better for them to pray in private: in Cairo, however, neither females nor young boys are allowed to pray with the congregation in the mosque, or even to be present in the mosque at any time of prayer: formerly women were permitted (and perhaps are still in some countries), but were obliged to place themselves apart from the men, and behind the latter; because, as Sale has remarked, the Muslims are of opinion that the presence of females inspires a different kind of devotion from that which is requisite in a place dedicated to the worship of God. Very few women in Egypt even pray at home.