The outer sides of the granite blocks were left with an excess of stone, in order to protect them in transport from Assuan, and this was never removed by dressing down, as had been intended. Thus in some examples--as above--the stone sticks out far beyond where the face was to be. In the granite temple the same method was followed, but there the wall was dressed, and hence each stone at the corners of the chambers turns a little way round the adjacent walls, so that the corner is cut out of solid stone all the way up. The temple of the third pyramid is the most complete, and gives the best notion of the enclosures around the cell or chamber, in which the offerings to the deceased king were presented. This view is from the top of the pyramid, looking down into it. At the end of its causeway are a few trees, and a hill on the right, with remains of another causeway leading from it to the plain. [Illustration: 5. TEMPLE OF THIRD PYRAMID.] Of the inside of the pyramids there were already numerous measurements recorded, which showed that small differences and errors existed in the work; but some fresh and more accurate methods of examination were needed. Instead then of simply measuring from wall to wall, and remaining in ignorance of where the discrepancies lay, I always used plumb-lines for measuring all upright faces, and a levelling instrument for all horizontal surfaces. By hanging a plumb-line in each corner of a room, and measuring from it to the walls at many parts of the height, and then observing the distances of the plumb-lines on the floor, it is easy to find the dimensions of the room at any level, and to know exactly where the faults of construction lie. The same principle gives us the readiest way of examining a solid, such as a sarcophagus; and we can thus, in a few hours, do more than in as many days’ work with elaborate apparatus. Some thread, and a piece of wax to stick it on with, are all that is needed beside the plain measuring rods.