:^0 Di Charles Stuart on the 



locality cannot be excelled, and the ravine extends 

 towards the hills for about two miles almost from the sea- 

 shore, and may be taken as a type of the character of the 

 other deans lying parallel with it and St Abb's Head. 

 Situated two miles farther south are the Tower and Pease 

 Deans, both excellent botanical stations, and most delightful 

 sylvan retreats. Polystichiim angulare is the representa- 

 tive plant in the Pease Dean, which was, I believe, the first 

 known Scottish station for it. Associated with it we have 

 Campanula latifolia, and many other interesting plants. 

 On the sea-shore, at the outlet of the Pease Burn, and 

 farther along the shore, Thcdictrum minus, Glaucium luteum, 

 Cramhe marilima (.^), Ligustrurti scoticum^ and Pulmonaria 

 angustifolia {?) are to be found. Dianthus deltoides occurs at 

 St Helen's Chapel, on the sea banks, with Prinmla elatior, 

 and many orchids. The stratification of the Silurian strata 

 is well seen in many places ; for by the action of tiio 

 waves the succession and position of the various strata and 

 rock formations are laid bare. Professor Playfair, Dr 

 Hutton, and Sir James Hall examined the geology of this 

 district thoroughly, and the whole region may be con- 

 sidered geologically classical. At Siccar Point, the 

 junction of the Old Ked Sandstone with the Silurian rocks 

 •is so remarkable as to attract the attention of persons little 

 acquainted with the science of geology ; and its bold rock 

 scenery and caves, full of stalactites, form objects of interest 

 to the scientific observer. Passing along the coast, we 

 arrive at the ruins of Fast Castle, built upon a peninsula of 

 rock high above the sea, one of the most picturesque 

 objects in the county, and from its elevated position 

 affording a magnificent sea view in all directions. Se.clwn 

 Rhodiola grows upon the rocks in abundance, with many 

 ferns — Asplenium marinum, a,nd A. Adiantum nigrum, being- 

 very abundant. Cramhe maritima (sea-kale) formerly 

 grew on the shore in su(;li abundance that the neighbour- 

 ing farmer was in the habit of transplanting it into his 

 garden, Cynoglossum o^cinalc also grows on the shore 

 (not found lately). Passing by the entrance of Dulaw 

 Dean, another excellent botanical resort, after a few miles 

 walk along the coast, we come to the noble headland of St 

 Abb's, with its lighthouse 300 feet above the sea, and 

 mural precipices on all sides. St Abb's Head is a mass of 



