64 The SJietlands in the 



the one a ground plan, the other a section may make 

 it easier to understand the internal arrangements. 



On the ground floor are three roomy domed 

 chambers (marked in the ground plan B, and in the 

 section G), built in the ordinary style of beehive- 

 houses, with stones overlapping inwards to a point. 

 The chamber that we examined, which was, we were 



THE BROCH OF MOUSA GROUND PLAN. 



told, a fair type of all, was fourteen feet long, five 

 feet six inches wide, and in the middle over nine feet 

 high. It was entered from the court, in which was a 

 square well or tank (C), by a low door (L), little 

 more than three feet high, and less than two and a 

 half wide, and ventilated, not lighted, by a small 

 square window (M) immediately over the door. On 

 one side of the chamber, there was a long narrow 



