There can be no doubt that these huge monuments were erected each as the tomb of an individual king, whose efforts were directed toward making it everlasting, and the greatest pains were taken to render the access to the burial chamber extremely hard to discover. This accounts for the vast disproportion between the lavish amount of material used for the pyramid and the smallness of the cavity enclosed in it. The material employed was limestone cased with syenite (granite from Syene), and the internal passages were lined with granite. The granite of the casing has entirely disappeared, but that employed as linings is still in its place, and so skilfully worked that it would not be possible to introduce even a sheet of paper between the joints. In the neighborhood of the pyramids are found a large number of tombs which are supposed to be those of private persons. Their form is generally that of a _mastaba_ or truncated pyramid with sloping walls, and their construction is evidently copied from a fashion of wooden architecture previously existing. The same idea of making an everlasting habitation for the body prevailed as in the case of the pyramids, and stone was therefore the material employed; but the builders seem to have desired to indulge in a decorative style, and as they were totally unable to originate a legitimate stone architecture, we find carved in stone, rounded beams as lintels, grooved posts, and—most curious of all—roofs that are an almost exact copy of the early timber huts when unsquared baulks of timber were laid across side by side to form a covering. When we come to the series of remains of the twelfth dynasty at Beni-Hassan, in middle Egypt, we meet with the earliest known examples of that most interesting feature of all subsequent styles—the column. Whether the idea of columnar architecture originated with the necessities of quarrying—square piers being left at intervals to support the superincumbent mass of rock as the quarry was gradually driven in—or whether the earliest stone piers were imitations of brickwork or of timber posts, we shall probably never be able to determine accurately, though the former supposition seems the more likely. We have here monuments of a date fourteen hundred years anterior to the earliest known Greek examples, with splendid columns, both exterior and interior, which no reasonable person can doubt are the prototypes of the Greek doric order. Egyptian temples can be generally classed under two heads: (1) the large principal temples, and (2) the small subsidiary ones called Typhonia or Mammisi. Both kinds of temple vary little, if at all, in plan from the time of the twelfth dynasty down to the Roman dominion.