230 Geological Society. 



and the Neocomian,: — he thinks it ought to be regarded as a new 

 deposit, and to receive a peculiar name. 



The paper was illustrated by a section and a sketch of the coast 

 near Atherfield; and it concludes with an expression of acknow- 

 ledgement to Mr. Austen, for the new impulse which his inquiries 

 have given to the study of the subcretaceous series in England. 



June 7, 1843. — A note was read from W.C.Trevelyan, Esq., F.G.S., 

 "On scratched surfaces of rocks near Mount Parnassus." 



On the way from Megara to Corinth the road descends to the 

 border of the sea at a part named, on account of its badness, icaKt 

 (TKaXa (the ancient Scironian rocks). It then runs along the base 

 of the cliffs where the limestone bed is nearly vertical ; and for above 

 200 feet in length and about 50 in height, wherever it is protected 

 from the weather, it is highly polished and scratched, several of the 

 scratches extending for several feet, so as to be nearly parallel with 

 each other and vertical. Where they are not weatherworn, Mr, 

 Trevelyan compares their aspect with those on the polished limestone 

 of the Jura near Neufchatel, which they also resemble in texture and 

 colour. Not having succeeded in detecting glacial phenomena at much 

 higher elevations on Mount Parnassus, Mr. Trevelyan considered, 

 that in this latitude, and at such a low level, the scratches could not 

 be attributed to that cause or to floating ice. Having found a portion 

 of rock apparently in its original situation in contact with the polished 

 surface, he was led to conclude that this was a case of " slickenside," 

 perhaps the effects of an earthquake ; and that the scratches may have 

 been produced by particles of sand or chert between the two surfaces 

 when they were put in motion. 



The only place in Greece where the author observed apparent 

 marks of glacial action was at the opening of a gorge on the south- 

 east flank of Mount Parnassus, above the town of Daulia (the an- 

 cient Daulis), where there are extensive mounds of gravel, debris and 

 boulders, evidently derived from the upper part of the gorge, and 

 resembling in form both longitudinal and transverse moraines, and 

 including occasionally small lakes or pools. Not finding however 

 any evidence of glaciers, Mr. Trevelyan concluded that the cause 

 might be found in storms, melting of snow and avalanches, of which 

 numerous recent evidences were seen in the neighbourhood. 



"On Ichthyopodolites, or petrified trackways of ambulatory fishes 

 upon sandstone of the Coal formation." By the Rev. W. Buckland, 

 D.D., F.G.S. 



These impressions were discovered by Miss Potts of Chester, on 

 a flagstone near the shaft of a coal-pit at Mostyn in Flintshire, and 

 were communicated by her to Dr. Buckland, with a remark on the 

 novelty of footsteps in any stratum older than the new red sand- 

 stone. As they present no trace of any true foot to which long 

 claws may have been attached, Dr. Buckland rejects the notion of 

 their having been made by a reptile. They consist of curvilinear 

 scratches disposed symmetrically at regular intervals on each side of 

 a level space, about two inches wide, which in his opinion may re- 

 present the body of a fish, to the pectoral rays of which animal he 



