Fig. 1.
Fig 2.
No. 8. Section of King’s Chamber and of Passage in Great Pyramid. Scale 50 ft. to 1 in.
Towards the exterior, where the pressure is not great, the roof is flat, though it is probable that even there the weight is throughout discharged by 2 stones, sloping up at a certain angle to where they meet, as at the entrance. Towards the centre of the pyramid, however, the passage becomes 28 feet high, the 7 upper courses of stone overhanging one another as shown in the annexed section (fig. 1), so as to reduce the bearing of the covering stone. Nowhere, however, is this ingenuity more shown than in the royal chamber, which measures 17 ft. 1 in. by 34 ft. 3 in., and 19 ft. in height. The walls are lined and the roof is formed of splendid slabs of Syenite, but above the roof 4 successive chambers, as shown in the annexed section (fig. 2), have been formed, each divided from the other by slabs of granite, polished on their lower surfaces, but left rough on the upper, and above these a 5th chamber is formed of 2 sloping blocks to discharge the weight of the whole. The first of these chambers has long been known; the upper four were discovered and first entered by Colonel Vyse, and it was in one of these that he discovered the name of the founder. This was not engraved as a record, but scribbled in red paint on the stones, apparently as a quarrymark, or as an address to the king, and accompanied by something like directions for their position in the building. The interest that attaches to these inscriptions consists in the certainty of their being contemporary records, in their proving that Khufu was the founder of the Great Pyramid, and consequently fixing its relative date beyond all possibility of cavil. This is the only really virgin discovery in the pyramids, as they have all been opened either in the time of the Greeks or Romans, or by the Mahometans, and an unrifled tomb of this age is still a desideratum. Until such is hit upon we must remain in ignorance of the real mode of sepulture in those days, and of the purpose of many of the arrangements in these mysterious buildings.
The portcullises which invariably close the entrances of the sepulchral chamber in the pyramids are among the most curious and ingenious of the arrangements of these buildings. Generally they consist of great cubical masses of granite, measuring 8 or 10 ft. each way, and consequently weighing 50 or 60 tons, and even more. These were fitted into chambers prepared during the construction of the building, but raised into the upper parts, and, being lowered after the body was deposited, closed the entrance so effectually that in some instances it has been found necessary either to break them in pieces, or to cut a passage round them, to gain admission to the chambers. They generally slide in grooves in the wall, to which they fit exactly, and altogether show a degree of ingenuity and forethought very remarkable, considering the early age at which they were executed.
In the Second Pyramid one chamber has been discovered partly above-ground, partly cut in the rock. In the Third the chambers are numerous, all excavated in the rock; and from the tunnels that have been driven by explorers through the superstructures of these two, it is very doubtful whether anything is to be found above-ground.[[36]]
All the old pyramids do not follow the simple outline of those at Gizeh. That at Dahshur, for instance, rises to half the height, with a slope of 54° to the horizon, but is finished at the angle of 45°, giving it a very exceptional appearance. The pyramids of Sakkara and Medum are of the class known as mastaba pyramids, the term mastaba (Arabic for bench) being given to the sloping-sided tombs of about 76° angle and from 10 to 20 ft. high.
No. 10. Pyramid of Sakkara. (From Colonel Vyse’s work.) Scale 100 ft to 1 in.