270 



/. W. Laidlay — On a Pre-Historic Dwelling. 



Helix, supposing it to have the power of either chemically dissolving 

 or mechanically abrading the stone, could readily have accomplished 

 the work. I am unable to state the height of these blocks above the 

 sea, but their position is considerably more elevated than the High 

 Tor, which rises about 350 feet above the river Derwent. I submit, 

 therefore, that by confirming my former observations as to the ir- 

 regularity of form and general verticality of direction of these 

 burrows, and by discovering them on a scarp, probably artificial, and 

 certainly at the bottom of a gorge of subaerial erosion, I have shown 

 that the Pholas theory is untenable. 



V. — Note on a Pbe-Historic Dwelling and Kitchen-Midden, 



ON the Coast of Haddingtonshire. 



By J. W. Laidlay, F.S.A., F.G.S. 



IHAYE much pleasure in furnishing you with the accompanying 

 rough sketch of the rock on which were discovered, some time 

 ago, the remains of a building and its "kitchen-midden," belonging to 

 a remote period, and in which you took some interest in respect of its 

 bearing upon a geological question of the day, namely, the supposed 

 rise of our coasts within the historical period. The rock in question, 

 situated about three miles east of North Berwick, on the south side of 

 the Frith of Forth, is isolated at spring-tides, but is not at other times 

 separated by the sea from the main-land. The remains of former ages 



Peninsula on ■whicli Pre-Historic dwelling was discoyered near Seacliff, 

 Haddingtonshire. 



found upon the rock, were, first, the foundations of an ancient build- 

 ing, consisting of walls formed of stones, selected apparently from the 

 neighbouring beach, and joined together with only earth or mud ; 

 being two to three courses in height, but concealed till recently by a 

 thick coating of turf; a large quantity of very rude pottery in frag- 



