The entrance D to this pyramid of Suphis was at a height of 47 ft. 6 in. above the base, and, as was almost invariably the case, on the north face; from the entrance a passage slopes downward at an angle of 26° 27' to a chamber cut in the rock at a depth of about 90 feet below the base of the pyramid. This chamber seems to have been intended as a blind, as it was not the place for the deposition of the corpse. From the point in the above described passage--marked A on our illustration of this pyramid--another gallery starts upwards, till it reaches the point C, from which a horizontal passage leads to another small chamber. This is called the Queen's Chamber, but no reason has been discovered for the name. From this point C the gallery continues upwards till, in the heart of the pyramid, the Royal Chamber, B, is reached. The walls of these chambers and passages are lined with masonry executed in the hardest stone (granite), and with an accuracy of fitting and a truth of surface that can hardly be surpassed. Extreme care seems to have been taken to prevent the great weight overhead from crushing in the galleries and the chamber. The gallery from C upwards is of the form shown in Fig. 9, where each layer of stones projects slightly beyond the one underneath it. Fig. 11 is a section of the chamber itself, and the succession of small chambers shown one above the other was evidently formed for the purpose of distributing the weight of the superincumbent mass. From the point C a narrow well leads almost perpendicularly downwards to a point nearly at the bottom of the first-mentioned gallery; and the purpose to be served by this well was long a subject of debate. The probability is that, after the corpse had been placed in its chamber, the workmen completely blocked up the passage from A to C by allowing large blocks of granite to slide down it, these blocks having been previously prepared and deposited in the larger gallery; the men then let themselves down the well, and by means of the lower gallery made their exit from the pyramid. The entrances to the chamber and to the pyramid itself were formed by huge blocks of stone which exactly fitted into grooves prepared for them with the most beautiful mathematical accuracy. The chief interest attaching to the pyramids lies in their extreme antiquity, and the scientific method of their construction; for their effect upon the spectator is by no means proportionate to their immense mass and the labour bestowed upon them. [Illustration: FIG. 9.--ASCENDING GALLERY IN THE GREAT PYRAMID.] [Illustration: FIG. 10.--THE SEPULCHRAL CHAMBER IN THE PYRAMID OF CEPHREN AT GIZEH.] [Illustration: FIG. 11.--THE CONSTRUCTION OF THE KING'S CHAMBER IN THE GREAT PYRAMID.]