In every case, too, the stone which covered the passageway adjoining the chamber and forming part of its wall was of great size. The variation in the length of the passageways is due to their partial destruction. The other dimensions are quite uniform, as will be seen by comparing the following measurements of nine chambers, taken at random:
| Length of Chamber. |
Breadth of Chamber. |
Height of Chamber. |
Length of Passageway. |
Breadth of Passageway. |
Height of Passageway. |
| 14·0 | 10·6 | 11·6 | 28 | 4·3 | 5·3 |
| 9·0 | 7·3 | 8·6 | 22 | 5·6 | 5·8 |
| 14·0 | 11·8 | 8·9 | 7 | 4·5 | 5·0 |
| 13·0 | 7·0 | 8·8 | 20 | 4·6 | 5·0 |
| 14·0 | 6·4 | 8·6 | 14 | 4·3 | 5·0 |
| 11·0 | 5·6 | 8·7 | 11 | 3·6 | 5·3 |
| 12·0 | 5·8 | 8·3 | *[1] | 4·1 | 5·0 |
| 12·4 | 8·2 | 12·0 | *[2] | 4·4 | 6·0 |
| 13·8 | 7·9 | 10·2 | *[3] | 5·0 | 6·3 |
The plans vary but little—a single chamber, with the right wall flush with the right wall of the passageway, as in Fig. 3; or else the passageway entering the chamber on a median line, leaving a jog on each side, as in Fig. 2. Mr. Ogawa informed me that he had seen one with a small supplementary chamber leading from the end of the larger chamber.
Fig. 5.—Appearance of Chamber from Passageway.
The passageway was nearly a foot narrower at the top than at the base, and in some cases was slightly narrower at the entrance.
In one case only were there signs that the chamber had been used
