dcologu of the Jtortcshmn District. 



By Rev. OSMOND FISHER, F.G.S. 



3TUIESE worked flints were found by Mr. Edward 

 Cunnington, of Weymouth, in a large pot-hole, or 

 " pipe," in the neighbourhood of the village of 

 Portesham, in Dorset. After I had been shown 

 them I visited the place where they had been 

 found, and I will endeavour to describe it. 



A long range of chalk hills, known as Ridgway, 

 forms the northern boundary of the Weymouth 

 Oolitic Rocks, which are brought up against the chalk by a great 

 fault. The chalk along this range is very much disturbed, and 

 often vertical, and in places some patches of lower tertiaries are 

 involved in the disturbance, and owe their preservation from 

 denudation to this fact. These tertiaries consist chiefly of flints 

 and sandy clay. The flints are many of them large and only 

 slightly worn. They are much bleached throughout and contain 

 often casts of shells. I am not acquainted with any place where 

 similar flints occur in situ in the chalk, but they are found in great 

 upland gravel deposits in many parts of the south-west, notably on 

 Haldon Hill, near Exeter. 



The highest point of Ridgway is Blackdovrn, and it is capped 

 by a patch of these tertiaries. Upon it stands the Hardy 



