ABERDOUR. 1 27 



Downing Point, there occurs only an uninteresting simi- 

 larity of trap ; it rests upon a thin series of strata of sand- 

 stone, but their more intimate relations are, as is generally 

 the case in this part of the coast, much obscured by a thick 

 covering of debris and vegetable soil ; — the sandstone abuts, 

 however, against the trap of the Point. On the shore op- 

 posite the House of Dunibristle, the strata change their 

 W. N.W. dip, for one to the E. S.E., and continue to 

 plunge in this direction as far as the old church of Dal- 

 gety, where, after lying for a short distance in an undula- 

 tory horizontal position, they are again found to sink to the 

 W. N.W., inclosing a parallel vein of greenstone, and abut- 

 ting against the trap hill of Braefoot. On the east side of 

 Braefoot strata of white sandstone are met with, having the 

 same inclination, and continue to form the shore as far as 

 Aberdour, a little to the west of which two dykes of trap, 

 occur, one of which appears to have risen through the stra- 

 ta and tilted them up on both sides. 



At Aberdour, on the western side of the harbour, a 

 greenstone cliff exhibits phenomena of a most satisfactory 

 nature in regard to its connexion with Neptunian rocks. 

 (Plate XIV.) The lowest visible rock on which the trap 

 rests is a white sandstone, which is exposed only for a few 

 feet, and is separated from another stratum of sandstone by 

 a mass of greenstone about two feet in breadth ; this se- 

 cond mass presents in one part a slight flexure, and, as all 

 the other masses included in this cliff of trap, gradually thins 

 out at its western extremity. Above these two included 

 portions of sandstone another one occurs, and also three 

 imbedded fragments of shale ; they vary in breadth from 

 half a foot to the most delicate thread, and are completely 

 changed in character ; the sandstone becoming quartzose, 

 and the shales assuming a compact structure. On the other 

 side of the harbour the same arrangement is visible ; the 



