[ 98 3 
XVII. An Account of a ProduBion of Na- 
ture at Dunbar in Scotland, like that of 
the Giants-Caufeway in Ireland ; by the 
Right Reverend Richard Lord Bijhop of 
Offory, F. R. S. 
Read Feb. 26, H E paftage into the harbour of 
Dunbar is very narrow, between 
two rocks : one of them is the eaft fide of the har- 
bour ; the other is a promontry, ftretching out about 
a hundred yards to the north, and is about twenty 
yards wide, having the fea on each fide of it, when 
the tide is in. This head is a moft extraordinary na- 
tural curiofity : it is of a red hone, which is not a 
lime-hone, but appears rather like a very hard free- 
hone. It looks on both hdes like the Giant’s- 
caufeway in Ireland : the hones on the weh fide are 
from a foot to two feet over ; on the eah lide they 
are larger, from two feet to four feet. I obferved the 
pillars from three to eight hdes ; but only one or two 
of the hrh and lah : they may be faid to be in joints, 
but are hrongly cemented together by a red and white 
fparry fubhance, which is formed in laminae round 
the pillars, and between the joints, two or three 
inches in thicknefs. The interhices between the 
large pillars, which are but few, are filled with fmall 
pillars, without joints. The pillars confih of hori- 
zontal laminae : the joints are not concave and convex 
when feparated, but uneven and irregular : they lie 
Hoping from eaft to weft : on the weft fide, towards 
the end, the pillars become very large and confufed, 
4 as 
