GEOLOGY OF THE SOUTH EAST OF DORSETSHIRE. 483 



position ; he is perfectly untameable, and cannot be broken 

 by any sort of education. * 



(To be continued.) 



Art. II. — Illustrations of the Geology of the South East of Dorset- 

 shire. By The Rev. W. B. Clarke, A.M., F.G.S. 



(Continued from page 238.^ 



From this examination of the composition of the coast line, 

 we have now to advert to the phenomena presented by it, in 

 connection with the underlying chalk. And I have, first, to 

 remark, that if my attempt to explain the singular conforma- 

 tion of the curved and vertical chalk beds at Ballard Head 

 (see Mag. Nat. Hist. Sept. 1837) needed any further elucida- 

 tion, we have the fullest evidence of the vertical up-cast of 

 the whole of the chalk between the Ballard Head fault and 

 Old Harry Point, not only in the derangements on the Stud- 

 land side, and in the perpendicular rents or fissures through 

 the nearly horizontal chalk beds, but in the inclination of the 

 plastic clay beds at the Red Rock cliff. For there is no 

 means of explaining that inclination, but the supposition of 

 the chalk having been bodily up-heaved, and lifting with it 

 the plastic clay beds, which became, in consequence, tilted 

 up at the point of contact and for some little distance, and 

 broken into portions by the giving way of the soft strata at 

 those parts now occupied by the ravines which lead from the 

 sea to the village of Studland. It is also clear, that if such 

 were the case at a distance from the chalk, the beds would, 

 beyond the last point of fracture, retain their original hori- 

 zontally, which is the case farther off from Studland. This 

 will appear very plainly, if we see by the map that the plas- 

 tic clay abuts upon the chalk on the north side of Ballard 

 Down, far away from the vertical chalk, and, therefore, no- 

 thing but an elevation of the chalk en masse, or a depression 

 beyond Studland, subjecting the northern end of the inclined 

 beds to a down-cast motion (for which there is no evidence 

 in the vicinity), can have produced the phenomena presented 

 by the Red Rock and adjacent cliffs. 



In order to explain this more fully, it must be mentioned 

 that the Studland rock is, in some degree, a separate portion 

 of the plastic clay. Seen from a distant elevation, such as 

 the hills on the north side of Poole Harbour, Studland ap- 

 pears to be a small table-land lying on the edges of the east 

 and north slopes of the chalk, and separated from the moun- 



1 Mr. Lens quotes an instance of an albino which became very tame. 



