124 THE LOWER GREENLAND OF EAST SURREY. [May 1895, 



of precise correlation. Further, he thought that the currents ran 

 not from K".W. to S.E.,but in the opposite direction, and that to the 

 west was a connexion with the sea north of the land-area then 

 in existence. The discovery of a Gault species of Pinites was of 

 interest, as it seemed probable that much of the ' Folkestone Sands ' 

 was of Lower Gault age. He doubted the necessity for the new 

 names, and thought it best to restrict the term ' Bargate ' to the lime- 

 stones to which it was given, and not to apply it to beds of different 

 composition in which the Bargate fauna does not occur. In his 

 remarks to the Geologists' Association he had not referred to the 

 cherts still in situ as deep-sea beds, but to others now known only 

 by fragments in the High-level and Southern Drifts. 



Mr. Boulger remarked tbat, as a native of the district under dis- 

 cussion and as having had the pleasure of being to a small extent 

 associated with the Author in his work on part of the district, he 

 was naturally much interested in the paper. The Fuller's Earth was 

 distinctly traceable in the eastern end of the area, i. e. in Blechinglev, 

 throwing out springs on the slope from the escarpment northward. 

 It might be topographically useful to record that the so-called 

 ' Beigate Stone,' much used for building in the neighbourhood, had 

 been largely quarried from the ' Stone-beds ' in the pit behind the 

 parochial school at Nuffield ; and that Bed Hill was an abbreviation 

 of Bedstone Hill, the name of the hill east of the railway, where the 

 red beds were present as well as on the Common. He thought that, 

 with the exception of the Atherfield Clay, the subdivisions could not 

 be mapped, for want of satisfactory base-lines. 



The Author, in reply to Mr. Meyer, said that the Lower Green- 

 sand was known to thin out under London. As to the use of local 

 names to describe the different beds, it was stated in the paper that 

 this was solely for the purpose of clear exposition here, since the 

 subject had become so terribly confused through different authors 

 using different terms for the definition of the same beds : one instance 

 was noted in the paper, where the same bed had been ascribed by three 

 authors respectively to the three divisions of the Lower Greensand. 

 He had retained the term ' Folkestone Beds,' although one speaker 

 had objected to that also, because there was no serious con- 

 fusion as to this horizon. He did not profess to have minutely 

 searched the whole of the sandy area to the south of Dorking for 

 sponge-spicules : there was over 100 feet of sands exposed ; he had 

 examined a large number of samples, however, and did not think 

 that spicules occurred there. The term ' deep-water beds ' was his 

 own, but the specimens on the table showed that the true sponge- 

 beds occurred plentifully at the southern end of Leith HiU. He 

 should have mentioned that he made a distinction between these true 

 sponge-beds and the cherts, which were extremely sandy and were 

 typical of the northern end of the hill. The thickness given to the 

 cherts was obtained by the levels of the outcrops at the southern 

 end of the hill. He was sorry that there was no time to refer to 

 the other criticisms, but he had, he thought, replied to the more 

 serious ones. The paper was one which could not and should not 

 escape criticism. 



