At the first meeting yesterday of FOAT's successor the Orkney Archaeological Society an image by Orkneyjar shewed how this circle would have looked when there were no places bereft of standing stones, as per this season's investigations here [in contrast to the Stones of Stenness which never had such regular spacings]. Only today it struck me that unrolled this is parallel to what I term 'standing stone fences', to whit lines of more or less regularly spaced erect stones [unlike the slab fences of the mid-19th century where there are no gaps between the flags]. Both are obviously symbolic thresholds rather than physical barriers. But could there be an actual continuity between the two forms, enclosed and unfurled ? Are there anywhere else lines of erect quadrilateral stones with spaces in between, as [presumably] distinct from the usual stone rows ?