PREFACE. XI 



have said that these are the principal rocks which we meet with 

 in Berwickshire, for we may now remark, that they are not the 

 only ones, another distinct formation making its appearance 

 in several different places. This, the first, or old red sandstone 

 formation, forming the usual connecting link between the tran- 

 sition and secondary rocks, we meet with in the south-west 

 corner of the county, as at Dryburgh, Merton, &c. There 

 it succeeds immediately to transition-rocks on the west, and is 

 again succeeded in its turn by the second or new red sand- 

 stone in the vicinity of Kelso. This formation, however, oc- 

 curring in small quantity, and so much out of the range of the 

 following Flora, we shall not again refer to it particularly, but 

 proceed, without farther remark, to give a very general descrip- 

 tion of the two others, noticing, as we go along, as many names 

 of interest as possible, that, by glancing at the habitats assigned 

 to the plants, in another part of these pages, we may at once 

 be able to recognize these spots again, whether as belonging to 

 the one or to the other class of rocks, and at the same time 

 know what are the particular mineral substances which there 

 predominate. 



44 Of those parishes within which habitats most frequently oc- 

 cur, we remark the following as belonging to the oldest of the 

 two formations, the transition class, viz. : The northern divi- 

 sion of the parish of Dunse, the parishes of Abbey St Bathan's, 

 Buncle, Cockburnspath, Coldingham, Eyemouth, the greater 

 part of Ay ton, and part of Mordington. To the latter division, 

 again, belongs the mouth of the Tweed, and neighbourhood of 

 Berwick, the remaining parts of the parishes of Dunse, Ay ton, 

 and Mordington, nearly the whole of Foulden, and the whole of 

 Hutton, Ladykirk, Chirnside, Whitsome, Swinton, Coldstream 

 and Eccles. 





