Dkscrhtion and Restokation ok Tomu 1. 55 caled as distinctly as those below, whilst the thirteen invisible courses are more faintly punctated (Fig. 262). The holes are of two kinds ; they are double at the points of junction between the fourth and fifth course, and were intended to receive double-tailed hooks. Reference to Fig. 263, which represents, on plan, the fourth and eighth ring, shows that they are not equally spaced ; the numbers coincide with the dowel-holes,
° 1 ' i ' r I* I* I* 1 ^ I ' i ' r^
Fiu. 363. — Tomb I. Flan of cupola a( Iwo different hci^lili. and express the intervals parting them. These vary from 35 to 124 centimetres. Above these courses the dowels are single and smaller, one centimetre across, and nine centimetres deep. In the eighth course, answering to the inner circle of Fig. 263, the spacing between the single holes — forty-three in number — is cir. one metre ; the accompanying numbers are simply put there to facilitate calculation. Vertically, this irregularity is even greater. The holes do not coincide ; but if we take three horizontal rows,
