The glaze of this brick is green, but other fragments are coloured blue, red, yellow, or white.
The nature of the soil does not allow of deep foundations.

It consists of a thin bed of made earth, which, except in large towns, never reaches any degree of thickness; below this comes a very dense humus, permeated by slender veins of sand; and below this again--at the level of infiltration-- comes a bed of mud, more or less soft, according to the season.

The native builders of the present day are content to remove only the made earth, and lay their foundations on the primeval soil; or, if that lies too deep, they stop at a yard or so below the surface.

The old Egyptians did likewise; and I have never seen any ancient house of which the foundations were more than four feet deep.

Even this is exceptional, the depth in most cases being not more than two feet.