The relation of the obelisk foot to the royal Egyptian cubit is seen in the following table: metres. Finger (1) .0187 Palm (also = 3 inches) (4) .075 _Common foot_ (16) .300 Common cubit (24) .450 Royal cubit (28) .525 It will be noticed that the actual measurements of the obelisks, both the original and the later project, very largely depend on the royal Egyptian cubit of .525 metre. The height of the large obelisk does not. Probably the order was for as large an obelisk as possible. The dimensions of even royal cubits are: cubits. Base of large obelisk 8 Base to black line π 4 Base of later project 6 Height of pyramidion of later project 10 Most of the remaining measurements, except the base of the pyramidion of the later project, depend on the rock rather than on the wish of the designers. Since the obelisk is still in a rough state I cannot give many accurate measurements from which the cubit can be found precisely. The two most accurate measurements are the base of the original obelisk and the base {20} of the later project. The former measures 4.20 or 8 cubits of .525 m., and the latter measures 3.15 or 6 cubits of .525 m. As to the explanation of the scales on the quarry-face, though much is still obscure to me, I believe the lower series of vertical scales are the records of the work of the last shift employed in cutting out the trench by which the monument was removed, and the semi-effaced series on a higher level the records of preceding shifts. It seems likely that the red chains are fortuitous, and do not represent any particular unit, but marked the position of the tip of a 3‐cubit rod, when standing on the bottom of the trench, thus recording the depth reached by each party of workmen at definite intervals of time, possibly after every two days’ pounding. (19) At the top, and to the right of the upper series of scales, are very faint traces of script. They seem to have been placed against each scale, but very few can now be seen. I have tried to photograph them with special panchromatic plates, but without success; the most I have been able to do is to examine them in various lights, when dry and when wetted, and to make hand copies. These are shewn in figures 2 to 4, and are from divisions VIII, IX and XII respectively. Figure 5 is an extra group of signs to the _left_ of the scale in division VIII. The inscriptions are all in red paint and are too fragmentary to translate. [Illustration: Fig. 2.] [Illustration: Fig. 3.] [Illustration: Fig. 4.] [Illustration: Fig. 5.] It is within the bounds of possibility that the inscriptions originally gave some information as to the party who were working that particular double-foot division of the trench.