384 



GEOLOGY OF THE ISLE OF PURBECK. 



petrified trees, still attached to the soil in which 

 they grew. These were first observed by the 

 present Dean of Westminster, and Sir H. De la 

 Beche.* The sketch in lign. 35, copied from the 

 " Memoir on the Geology of Weymouth," by these 

 distinguished geologists, illustrates the position 

 of the strata and fossil trees. 



LIGN. 35. — SECTION EXPOSED IN THE CLIFF EAST OF HIWORTH COVE. 



a, a. Stratum of calcareous laminated stone, termed " burr." 



b, b. The "dirt-bed," with fossil trees. 



(Fro?n the Geological Transactions.) 



On doubling the rocks on the east corner of the 

 cove, the Purbeck beds are seen resting on the 

 oolite, and forming " South Cliff" which is sur- 

 rounded by the insulated masses of rock that appear 

 on the west side of Worbarrow Bay (see PL XVI. 

 p. 371). It is about a furlong to the east of 



* Geol. Trans, vol. iv. 



