348 



GEOLOGY OF THE ISLE OF PURBECK. 



«so ' 



find the south end composed of strata of chalk and 



flint quite vertical."* 



Swanage Bay. — We land 

 at the little town of Swanwich, 

 or Swanage, where excellent ac- 

 commodation may be obtained, 

 and vehicles and boats hired 

 for excursions by land or water. 

 The exportation of stone is 

 still so considerable as to give 

 the place an aspect of cheerful 

 activity. 



The cliffs that extend across 

 Swanage Bay, expose a trans- 

 verse vertical section of the 

 strata from north to south, and 

 afford a key to the geological 

 structure of the Island ; as 

 shown in lign. 28. 



In this line of coast, the 

 entire scries of deposits from 

 the Chalk at Ballard Downs, 

 to the Portland oolite at Durl- 

 stone Head, is displayed in 

 the natural order of succes- 

 sion. This section will remind 



li B< Id's [sle of Wight, p. 164. 



3S 



