Fig. 21. Click on the image to view larger version.
| R.B. Cub. | |
| Apex of Cephren above Base Cheops | 295·98 |
| Apex of Cheops above Base Cheops | 287·77 |
| Apex of Mycerinus above Base Cheops | 156·51 |
| Base Cephren above base of Cheops | 20·37 |
| Base Mycerinus above base of Cheops | 25·37 |
Piazzi Smyth makes the top of the tenth course of Cheops 414 pyramid inches above the pavement; and 414 divided by 20·2006 equals 20·49 R.B. cubits.
But I have already proved that Cheops' 420 cubit base measure occurs at a level of 20·37 cubits above pavement; therefore is this level the level of the top of the tenth course, for the difference is only 0·12 R.B. cubits, or 2½ inches.
I wish here to note as a matter of interest, but not as affecting my theory, the following measures of Piazzi Smyth, turned into R.B. cubits, viz.:—
| PYR. INCHES. | R.B. CUBITS. | ||
| King's Chamber floor, above pavement | 1702· | = | 84·25 |
| Cheops' Base, as before stated | 9131·05 | = | 452·01 |
| King's Chamber, "True Length," | 412·132 | = | 20·40 |
| King's Chamber, "True First Height," | 230·389 | = | 11·40 |
| King's Chamber, "True Breadth," | 206·066 | = | 10·20 |
He makes the present summit platform of Cheops 5445 pyramid inches above pavement. My calculation of 269·80 R.B. cub. (See Fig. 21) is equal to 5450 pyramid inches—this is about 18 cubits below the theoretical apex.