
“Plan of the cromlech at Longhouse, Pembroke. The outer line shows the form of the slab, and A B and C, the position of the upright stones on which it is supported.)” In the Weekly Mail, 8th November 1890.
“Plan of the cromlech at Longhouse, Pembroke. The outer line shows the form of the slab, and A B and C, the position of the upright stones on which it is supported.)” In the Weekly Mail, 8th November 1890.