11 G THE GEOLOGY OF BRIDPORT. 



Inferior Oolite Quarries near Bcarainster, Broadwindsor, Mapper- 

 ton, Poorstock, Loders, Blue Ball, Shipton Gorge, Burton 

 Bradstock, and Chideock Hill. 

 Fuller's Earth Eype Cliff, Poorstock Station (near), Brickyard 



between there and Toller, Cliff End Burton. 



Forest Marble Bothenhampton, North Hill, Eype Cliff, Cliff End 

 Burton, Bredy Hill, South of Greensand Knoll, South of 

 Puncknoll. 

 Cornbrash Pit S.E. of Cogden, E. of Burton Bradstock, Pit near 



Puncknoll and Swyre. 



Oxford Clay Brickyard S.S.E. of Hammerdon Hill. 

 Kellaway's Rock has not been found in Dorsetshire, but may be 



looked for near Chilconibe or Rampisham. 



One word about the Chesil Beach. It is mainly composed of 

 pebbles brought from Devonshire, which have been stopped in 

 their eastward progress by the great natural groyn of the Isle of 

 Portland, and then seem to have been washed back and ground 

 smaller and smaller in the process till arrested by the pier of 

 Bridport Harbour and carted away for commercial purposes. At 

 Chesilton we may pick up plenty of Budleigh Salterton pebbles 

 about the same size as they are found at Budleigh Salterton. They 

 seem to have been washed straight across the bay, suffering very 

 little wear and tear. At Bridport Harbour we find these pebbles in 

 abundance ground down to mere grains, though still often preserving 

 their characteristic shape, and, fast as the material is carted 

 away, it is regularly replaced by the ceaseless action of the sea. 

 That this is what happens seems tolerably plain ; but why the sea 

 acts with this eastward current across the bay and the return eddy 

 along the shore has, I believe, never been satisfactorily explained. 



In conclusion I would beg to suggest that on some suitable 

 occasion the Club should petition the Government to give us a 

 Geological Survey Map of Dorset on the 6-inch scale. Hampshire 

 petitioned for this and got it. Much work remains to be done in 

 this county which will never be done satisfactorily by amateurs 

 e.g., in connection with the Greensand and Chalk east and north- 



